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ara-mdk / platform / external / chromium / 0abec4daa38319f371ac6555e7887f6b14f34291 / . / chrome / browser / browser_main.cc
blob: 72a1930ad2866f1fb8eed107d43e0485484bfb8c [file] [log] [blame]
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/browser_main.h"
#include <algorithm>
#include <string>
#include <vector>
#include "base/allocator/allocator_shim.h"
#include "base/at_exit.h"
#include "base/command_line.h"
#include "base/debug/trace_event.h"
#include "base/file_path.h"
#include "base/file_util.h"
#include "base/mac/scoped_nsautorelease_pool.h"
#include "base/metrics/field_trial.h"
#include "base/metrics/histogram.h"
#include "base/path_service.h"
#include "base/process_util.h"
#include "base/string_number_conversions.h"
#include "base/string_piece.h"
#include "base/string_split.h"
#include "base/string_util.h"
#include "base/sys_string_conversions.h"
#include "base/threading/platform_thread.h"
#include "base/threading/thread_restrictions.h"
#include "base/time.h"
#include "base/utf_string_conversions.h"
#include "base/values.h"
#include "build/build_config.h"
#include "chrome/browser/about_flags.h"
#include "chrome/browser/browser_main_win.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/browser_process_impl.h"
#include "chrome/browser/browser_shutdown.h"
#include "chrome/browser/chrome_content_browser_client.h"
#include "chrome/browser/defaults.h"
#include "chrome/browser/extensions/extension_protocols.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/extensions/extensions_startup.h"
#include "chrome/browser/first_run/first_run.h"
#include "chrome/browser/first_run/first_run_browser_process.h"
#include "chrome/browser/first_run/upgrade_util.h"
#include "chrome/browser/jankometer.h"
#include "chrome/browser/metrics/histogram_synchronizer.h"
#include "chrome/browser/metrics/metrics_log.h"
#include "chrome/browser/metrics/metrics_service.h"
#include "chrome/browser/metrics/thread_watcher.h"
#include "chrome/browser/net/blob_url_request_job_factory.h"
#include "chrome/browser/net/chrome_dns_cert_provenance_checker.h"
#include "chrome/browser/net/chrome_dns_cert_provenance_checker_factory.h"
#include "chrome/browser/net/file_system_url_request_job_factory.h"
#include "chrome/browser/net/metadata_url_request.h"
#include "chrome/browser/net/predictor_api.h"
#include "chrome/browser/net/sdch_dictionary_fetcher.h"
#include "chrome/browser/net/websocket_experiment/websocket_experiment_runner.h"
#include "chrome/browser/prefs/browser_prefs.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/browser/prefs/pref_value_store.h"
#include "chrome/browser/prerender/prerender_field_trial.h"
#include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
#include "chrome/browser/process_singleton.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/search_engines/search_engine_type.h"
#include "chrome/browser/search_engines/template_url.h"
#include "chrome/browser/search_engines/template_url_model.h"
#include "chrome/browser/service/service_process_control.h"
#include "chrome/browser/service/service_process_control_manager.h"
#include "chrome/browser/shell_integration.h"
#include "chrome/browser/translate/translate_manager.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_init.h"
#include "chrome/browser/ui/webui/chrome_url_data_manager_backend.h"
#include "chrome/browser/web_resource/gpu_blacklist_updater.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/env_vars.h"
#include "chrome/common/json_pref_store.h"
#include "chrome/common/jstemplate_builder.h"
#include "chrome/common/logging_chrome.h"
#include "chrome/common/net/net_resource_provider.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/profiling.h"
#include "chrome/installer/util/google_update_settings.h"
#include "content/browser/browser_thread.h"
#include "content/browser/plugin_service.h"
#include "content/browser/renderer_host/resource_dispatcher_host.h"
#include "content/common/child_process.h"
#include "content/common/content_client.h"
#include "content/common/hi_res_timer_manager.h"
#include "content/common/main_function_params.h"
#include "content/common/result_codes.h"
#include "grit/app_locale_settings.h"
#include "grit/chromium_strings.h"
#include "grit/generated_resources.h"
#include "grit/platform_locale_settings.h"
#include "net/base/cookie_monster.h"
#include "net/base/net_module.h"
#include "net/base/network_change_notifier.h"
#include "net/http/http_network_layer.h"
#include "net/http/http_stream_factory.h"
#include "net/socket/client_socket_pool_base.h"
#include "net/socket/client_socket_pool_manager.h"
#include "net/socket/tcp_client_socket.h"
#include "net/spdy/spdy_session.h"
#include "net/spdy/spdy_session_pool.h"
#include "net/url_request/url_request.h"
#include "net/url_request/url_request_throttler_manager.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/base/system_monitor/system_monitor.h"
#include "ui/gfx/gl/gl_implementation.h"
#include "ui/gfx/gl/gl_switches.h"
#if defined(USE_LINUX_BREAKPAD)
#include "base/linux_util.h"
#include "chrome/app/breakpad_linux.h"
#endif
#if defined(OS_POSIX) && !defined(OS_MACOSX)
#include <dbus/dbus-glib.h>
#include "chrome/browser/browser_main_gtk.h"
#include "chrome/browser/ui/gtk/gtk_util.h"
#endif
#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
#include "chrome/browser/first_run/upgrade_util_linux.h"
#endif
#if defined(OS_CHROMEOS)
#include "chrome/browser/chromeos/boot_times_loader.h"
#include "chrome/browser/chromeos/brightness_observer.h"
#include "chrome/browser/chromeos/cros/cros_library.h"
#include "chrome/browser/chromeos/cros/screen_lock_library.h"
#include "chrome/browser/chromeos/customization_document.h"
#include "chrome/browser/chromeos/external_metrics.h"
#include "chrome/browser/chromeos/login/authenticator.h"
#include "chrome/browser/chromeos/login/login_utils.h"
#include "chrome/browser/chromeos/login/ownership_service.h"
#include "chrome/browser/chromeos/login/screen_locker.h"
#include "chrome/browser/chromeos/login/user_manager.h"
#include "chrome/browser/chromeos/metrics_cros_settings_provider.h"
#include "chrome/browser/chromeos/net/network_change_notifier_chromeos.h"
#include "chrome/browser/chromeos/system_key_event_listener.h"
#include "chrome/browser/oom_priority_manager.h"
#include "chrome/browser/ui/views/browser_dialogs.h"
#endif
// TODO(port): several win-only methods have been pulled out of this, but
// BrowserMain() as a whole needs to be broken apart so that it's usable by
// other platforms. For now, it's just a stub. This is a serious work in
// progress and should not be taken as an indication of a real refactoring.
#if defined(OS_WIN)
#include <commctrl.h>
#include <shellapi.h>
#include <windows.h>
#include "app/win/scoped_com_initializer.h"
#include "base/win/windows_version.h"
#include "chrome/browser/browser_trial.h"
#include "chrome/browser/browser_util_win.h"
#include "chrome/browser/first_run/try_chrome_dialog_view.h"
#include "chrome/browser/first_run/upgrade_util_win.h"
#include "chrome/browser/metrics/user_metrics.h"
#include "chrome/browser/net/url_fixer_upper.h"
#include "chrome/browser/rlz/rlz.h"
#include "chrome/browser/ui/views/user_data_dir_dialog.h"
#include "chrome/common/sandbox_policy.h"
#include "chrome/installer/util/helper.h"
#include "chrome/installer/util/install_util.h"
#include "chrome/installer/util/shell_util.h"
#include "net/base/net_util.h"
#include "net/base/sdch_manager.h"
#include "printing/printed_document.h"
#include "sandbox/src/sandbox.h"
#include "ui/base/l10n/l10n_util_win.h"
#include "ui/gfx/platform_font_win.h"
#endif // defined(OS_WIN)
#if defined(OS_MACOSX)
#include <Security/Security.h>
#include "chrome/browser/cocoa/install_from_dmg.h"
#endif
#if defined(TOOLKIT_VIEWS)
#include "chrome/browser/ui/views/chrome_views_delegate.h"
#include "views/focus/accelerator_handler.h"
#if defined(TOOLKIT_USES_GTK)
#include "views/widget/widget_gtk.h"
#endif
#endif
#if defined(TOOLKIT_USES_GTK)
#include "ui/gfx/gtk_util.h"
#endif
#if defined(TOUCH_UI)
#include "views/widget/root_view.h"
#endif
// BrowserMainParts ------------------------------------------------------------
BrowserMainParts::BrowserMainParts(const MainFunctionParams& parameters)
: parameters_(parameters),
parsed_command_line_(parameters.command_line_) {
}
BrowserMainParts::~BrowserMainParts() {
}
// BrowserMainParts: |EarlyInitialization()| and related -----------------------
void BrowserMainParts::EarlyInitialization() {
PreEarlyInitialization();
if (parsed_command_line().HasSwitch(switches::kEnableBenchmarking))
base::FieldTrial::EnableBenchmarking();
InitializeSSL();
if (parsed_command_line().HasSwitch(switches::kEnableDNSSECCerts))
net::SSLConfigService::EnableDNSSEC();
if (parsed_command_line().HasSwitch(switches::kDisableSSLFalseStart))
net::SSLConfigService::DisableFalseStart();
// Disabled to stop people playing with it.
// if (parsed_command_line().HasSwitch(switches::kEnableSnapStart))
// net::SSLConfigService::EnableSnapStart();
if (parsed_command_line().HasSwitch(
switches::kEnableDNSCertProvenanceChecking)) {
net::SSLConfigService::EnableDNSCertProvenanceChecking();
}
if (parsed_command_line().HasSwitch(switches::kEnableTcpFastOpen))
net::set_tcp_fastopen_enabled(true);
PostEarlyInitialization();
}
// This will be called after the command-line has been mutated by about:flags
void BrowserMainParts::SetupFieldTrials() {
// Note: make sure to call ConnectionFieldTrial() before
// ProxyConnectionsFieldTrial().
ConnectionFieldTrial();
SocketTimeoutFieldTrial();
ProxyConnectionsFieldTrial();
prerender::ConfigurePrefetchAndPrerender(parsed_command_line());
SpdyFieldTrial();
ConnectBackupJobsFieldTrial();
SSLFalseStartFieldTrial();
}
// This is an A/B test for the maximum number of persistent connections per
// host. Currently Chrome, Firefox, and IE8 have this value set at 6. Safari
// uses 4, and Fasterfox (a plugin for Firefox that supposedly configures it to
// run faster) uses 8. We would like to see how much of an effect this value has
// on browsing. Too large a value might cause us to run into SYN flood detection
// mechanisms.
void BrowserMainParts::ConnectionFieldTrial() {
const base::FieldTrial::Probability kConnectDivisor = 100;
const base::FieldTrial::Probability kConnectProbability = 1; // 1% prob.
// After June 30, 2011 builds, it will always be in default group.
scoped_refptr<base::FieldTrial> connect_trial(
new base::FieldTrial(
"ConnCountImpact", kConnectDivisor, "conn_count_6", 2011, 6, 30));
// This (6) is the current default value. Having this group declared here
// makes it straightforward to modify |kConnectProbability| such that the same
// probability value will be assigned to all the other groups, while
// preserving the remainder of the of probability space to the default value.
const int connect_6 = connect_trial->kDefaultGroupNumber;
const int connect_5 = connect_trial->AppendGroup("conn_count_5",
kConnectProbability);
const int connect_7 = connect_trial->AppendGroup("conn_count_7",
kConnectProbability);
const int connect_8 = connect_trial->AppendGroup("conn_count_8",
kConnectProbability);
const int connect_9 = connect_trial->AppendGroup("conn_count_9",
kConnectProbability);
const int connect_trial_group = connect_trial->group();
if (connect_trial_group == connect_5) {
net::ClientSocketPoolManager::set_max_sockets_per_group(5);
} else if (connect_trial_group == connect_6) {
net::ClientSocketPoolManager::set_max_sockets_per_group(6);
} else if (connect_trial_group == connect_7) {
net::ClientSocketPoolManager::set_max_sockets_per_group(7);
} else if (connect_trial_group == connect_8) {
net::ClientSocketPoolManager::set_max_sockets_per_group(8);
} else if (connect_trial_group == connect_9) {
net::ClientSocketPoolManager::set_max_sockets_per_group(9);
} else {
NOTREACHED();
}
}
// A/B test for determining a value for unused socket timeout. Currently the
// timeout defaults to 10 seconds. Having this value set too low won't allow us
// to take advantage of idle sockets. Setting it to too high could possibly
// result in more ERR_CONNECT_RESETs, requiring one RTT to receive the RST
// packet and possibly another RTT to re-establish the connection.
void BrowserMainParts::SocketTimeoutFieldTrial() {
const base::FieldTrial::Probability kIdleSocketTimeoutDivisor = 100;
// 1% probability for all experimental settings.
const base::FieldTrial::Probability kSocketTimeoutProbability = 1;
// After June 30, 2011 builds, it will always be in default group.
scoped_refptr<base::FieldTrial> socket_timeout_trial(
new base::FieldTrial("IdleSktToImpact", kIdleSocketTimeoutDivisor,
"idle_timeout_60", 2011, 6, 30));
const int socket_timeout_60 = socket_timeout_trial->kDefaultGroupNumber;
const int socket_timeout_5 =
socket_timeout_trial->AppendGroup("idle_timeout_5",
kSocketTimeoutProbability);
const int socket_timeout_10 =
socket_timeout_trial->AppendGroup("idle_timeout_10",
kSocketTimeoutProbability);
const int socket_timeout_20 =
socket_timeout_trial->AppendGroup("idle_timeout_20",
kSocketTimeoutProbability);
const int idle_to_trial_group = socket_timeout_trial->group();
if (idle_to_trial_group == socket_timeout_5) {
net::ClientSocketPool::set_unused_idle_socket_timeout(5);
} else if (idle_to_trial_group == socket_timeout_10) {
net::ClientSocketPool::set_unused_idle_socket_timeout(10);
} else if (idle_to_trial_group == socket_timeout_20) {
net::ClientSocketPool::set_unused_idle_socket_timeout(20);
} else if (idle_to_trial_group == socket_timeout_60) {
net::ClientSocketPool::set_unused_idle_socket_timeout(60);
} else {
NOTREACHED();
}
}
void BrowserMainParts::ProxyConnectionsFieldTrial() {
const base::FieldTrial::Probability kProxyConnectionsDivisor = 100;
// 25% probability
const base::FieldTrial::Probability kProxyConnectionProbability = 1;
// After June 30, 2011 builds, it will always be in default group.
scoped_refptr<base::FieldTrial> proxy_connection_trial(
new base::FieldTrial("ProxyConnectionImpact", kProxyConnectionsDivisor,
"proxy_connections_32", 2011, 6, 30));
// This (32 connections per proxy server) is the current default value.
// Declaring it here allows us to easily re-assign the probability space while
// maintaining that the default group always has the remainder of the "share",
// which allows for cleaner and quicker changes down the line if needed.
const int proxy_connections_32 = proxy_connection_trial->kDefaultGroupNumber;
// The number of max sockets per group cannot be greater than the max number
// of sockets per proxy server. We tried using 8, and it can easily
// lead to total browser stalls.
const int proxy_connections_16 =
proxy_connection_trial->AppendGroup("proxy_connections_16",
kProxyConnectionProbability);
const int proxy_connections_64 =
proxy_connection_trial->AppendGroup("proxy_connections_64",
kProxyConnectionProbability);
const int proxy_connections_trial_group = proxy_connection_trial->group();
if (proxy_connections_trial_group == proxy_connections_16) {
net::ClientSocketPoolManager::set_max_sockets_per_proxy_server(16);
} else if (proxy_connections_trial_group == proxy_connections_32) {
net::ClientSocketPoolManager::set_max_sockets_per_proxy_server(32);
} else if (proxy_connections_trial_group == proxy_connections_64) {
net::ClientSocketPoolManager::set_max_sockets_per_proxy_server(64);
} else {
NOTREACHED();
}
}
// When --use-spdy not set, users will be in A/B test for spdy.
// group A (npn_with_spdy): this means npn and spdy are enabled. In case server
// supports spdy, browser will use spdy.
// group B (npn_with_http): this means npn is enabled but spdy won't be used.
// Http is still used for all requests.
// default group: no npn or spdy is involved. The "old" non-spdy
// chrome behavior.
void BrowserMainParts::SpdyFieldTrial() {
if (parsed_command_line().HasSwitch(switches::kUseSpdy)) {
std::string spdy_mode =
parsed_command_line().GetSwitchValueASCII(switches::kUseSpdy);
net::HttpNetworkLayer::EnableSpdy(spdy_mode);
} else {
#if !defined(OS_CHROMEOS)
bool is_spdy_trial = false;
const base::FieldTrial::Probability kSpdyDivisor = 100;
base::FieldTrial::Probability npnhttp_probability = 5;
// After June 30, 2011 builds, it will always be in default group.
scoped_refptr<base::FieldTrial> trial(
new base::FieldTrial(
"SpdyImpact", kSpdyDivisor, "npn_with_spdy", 2011, 6, 30));
// npn with spdy support is the default.
int npn_spdy_grp = trial->kDefaultGroupNumber;
// npn with only http support, no spdy.
int npn_http_grp = trial->AppendGroup("npn_with_http", npnhttp_probability);
int trial_grp = trial->group();
if (trial_grp == npn_http_grp) {
is_spdy_trial = true;
net::HttpNetworkLayer::EnableSpdy("npn-http");
} else if (trial_grp == npn_spdy_grp) {
is_spdy_trial = true;
net::HttpNetworkLayer::EnableSpdy("npn");
} else {
CHECK(!is_spdy_trial);
}
#else
// Always enable SPDY on Chrome OS
net::HttpNetworkLayer::EnableSpdy("npn");
#endif // !defined(OS_CHROMEOS)
}
// Setup SPDY CWND Field trial.
const base::FieldTrial::Probability kSpdyCwndDivisor = 100;
const base::FieldTrial::Probability kSpdyCwnd16 = 20; // fixed at 16
const base::FieldTrial::Probability kSpdyCwnd10 = 20; // fixed at 10
const base::FieldTrial::Probability kSpdyCwndMin16 = 20; // no less than 16
const base::FieldTrial::Probability kSpdyCwndMin10 = 20; // no less than 10
// After June 30, 2011 builds, it will always be in default group
// (cwndDynamic).
scoped_refptr<base::FieldTrial> trial(
new base::FieldTrial(
"SpdyCwnd", kSpdyCwndDivisor, "cwndDynamic", 2011, 6, 30));
trial->AppendGroup("cwnd10", kSpdyCwnd10);
trial->AppendGroup("cwnd16", kSpdyCwnd16);
trial->AppendGroup("cwndMin16", kSpdyCwndMin16);
trial->AppendGroup("cwndMin10", kSpdyCwndMin10);
if (parsed_command_line().HasSwitch(switches::kMaxSpdyConcurrentStreams)) {
int value = 0;
base::StringToInt(parsed_command_line().GetSwitchValueASCII(
switches::kMaxSpdyConcurrentStreams),
&value);
if (value > 0)
net::SpdySession::set_max_concurrent_streams(value);
}
}
void BrowserMainParts::SSLFalseStartFieldTrial() {
if (parsed_command_line().HasSwitch(switches::kDisableSSLFalseStart)) {
net::SSLConfigService::DisableFalseStart();
return;
}
const base::FieldTrial::Probability kDivisor = 100;
base::FieldTrial::Probability falsestart_probability = 50; // 50/50 trial
// After July 30, 2011 builds, it will always be in default group.
scoped_refptr<base::FieldTrial> trial(
new base::FieldTrial(
"SSLFalseStart", kDivisor, "FalseStart_enabled", 2011, 7, 30));
int disabled_group = trial->AppendGroup("FalseStart_disabled",
falsestart_probability);
int trial_grp = trial->group();
if (trial_grp == disabled_group)
net::SSLConfigService::DisableFalseStart();
}
// If neither --enable-connect-backup-jobs or --disable-connect-backup-jobs is
// specified, run an A/B test for automatically establishing backup TCP
// connections when a certain timeout value is exceeded.
void BrowserMainParts::ConnectBackupJobsFieldTrial() {
if (parsed_command_line().HasSwitch(switches::kEnableConnectBackupJobs)) {
net::internal::ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(
true);
} else if (parsed_command_line().HasSwitch(
switches::kDisableConnectBackupJobs)) {
net::internal::ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(
false);
} else {
const base::FieldTrial::Probability kConnectBackupJobsDivisor = 100;
// 1% probability.
const base::FieldTrial::Probability kConnectBackupJobsProbability = 1;
// After June 30, 2011 builds, it will always be in defaut group.
scoped_refptr<base::FieldTrial> trial(
new base::FieldTrial("ConnnectBackupJobs",
kConnectBackupJobsDivisor, "ConnectBackupJobsEnabled", 2011, 6,
30));
const int connect_backup_jobs_enabled = trial->kDefaultGroupNumber;
trial->AppendGroup("ConnectBackupJobsDisabled",
kConnectBackupJobsProbability);
const int trial_group = trial->group();
net::internal::ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(
trial_group == connect_backup_jobs_enabled);
}
}
// BrowserMainParts: |MainMessageLoopStart()| and related ----------------------
void BrowserMainParts::MainMessageLoopStart() {
PreMainMessageLoopStart();
main_message_loop_.reset(new MessageLoop(MessageLoop::TYPE_UI));
// TODO(viettrungluu): should these really go before setting the thread name?
system_monitor_.reset(new ui::SystemMonitor);
hi_res_timer_manager_.reset(new HighResolutionTimerManager);
#if defined(OS_CHROMEOS)
// TODO(zelidrag): We need to move cros library glue code outside of
// chrome/browser directory to avoid check_deps issues and then migrate
// NetworkChangeNotifierCros class to net/base where other OS implementations
// live.
network_change_notifier_.reset(new chromeos::NetworkChangeNotifierChromeos());
#else
network_change_notifier_.reset(net::NetworkChangeNotifier::Create());
#endif
InitializeMainThread();
PostMainMessageLoopStart();
Profiling::MainMessageLoopStarted();
}
void BrowserMainParts::InitializeMainThread() {
const char* kThreadName = "CrBrowserMain";
base::PlatformThread::SetName(kThreadName);
main_message_loop().set_thread_name(kThreadName);
// Register the main thread by instantiating it, but don't call any methods.
main_thread_.reset(new BrowserThread(BrowserThread::UI,
MessageLoop::current()));
}
// -----------------------------------------------------------------------------
// TODO(viettrungluu): move more/rest of BrowserMain() into above structure
namespace {
// This function provides some ways to test crash and assertion handling
// behavior of the program.
void HandleTestParameters(const CommandLine& command_line) {
// This parameter causes an assertion.
if (command_line.HasSwitch(switches::kBrowserAssertTest)) {
DCHECK(false);
}
// This parameter causes a null pointer crash (crash reporter trigger).
if (command_line.HasSwitch(switches::kBrowserCrashTest)) {
int* bad_pointer = NULL;
*bad_pointer = 0;
}
#if defined(OS_CHROMEOS)
// Test loading libcros and exit. We return 0 if the library could be loaded,
// and 1 if it can't be. This is for validation that the library is installed
// and versioned properly for Chrome to find.
if (command_line.HasSwitch(switches::kTestLoadLibcros))
exit(!chromeos::CrosLibrary::Get()->EnsureLoaded());
#endif
}
void RunUIMessageLoop(BrowserProcess* browser_process) {
TRACE_EVENT_BEGIN("BrowserMain:MESSAGE_LOOP", 0, "");
// This should be invoked as close to the start of the browser's
// UI thread message loop as possible to get a stable measurement
// across versions.
RecordBrowserStartupTime();
// If the UI thread blocks, the whole UI is unresponsive.
// Do not allow disk IO from the UI thread.
base::ThreadRestrictions::SetIOAllowed(false);
#if defined(TOOLKIT_VIEWS)
views::AcceleratorHandler accelerator_handler;
MessageLoopForUI::current()->Run(&accelerator_handler);
#elif defined(USE_X11)
MessageLoopForUI::current()->Run(NULL);
#elif defined(OS_POSIX)
MessageLoopForUI::current()->Run();
#endif
#if defined(OS_CHROMEOS)
chromeos::BootTimesLoader::Get()->AddLogoutTimeMarker("UIMessageLoopEnded",
true);
#endif
TRACE_EVENT_END("BrowserMain:MESSAGE_LOOP", 0, "");
}
void AddFirstRunNewTabs(BrowserInit* browser_init,
const std::vector<GURL>& new_tabs) {
for (std::vector<GURL>::const_iterator it = new_tabs.begin();
it != new_tabs.end(); ++it) {
if (it->is_valid())
browser_init->AddFirstRunTab(*it);
}
}
#if defined(USE_LINUX_BREAKPAD)
class GetLinuxDistroTask : public Task {
public:
explicit GetLinuxDistroTask() {}
virtual void Run() {
base::GetLinuxDistro(); // Initialize base::linux_distro if needed.
}
DISALLOW_COPY_AND_ASSIGN(GetLinuxDistroTask);
};
#endif // USE_LINUX_BREAKPAD
void InitializeNetworkOptions(const CommandLine& parsed_command_line) {
if (parsed_command_line.HasSwitch(switches::kEnableFileCookies)) {
// Enable cookie storage for file:// URLs. Must do this before the first
// Profile (and therefore the first CookieMonster) is created.
net::CookieMonster::EnableFileScheme();
}
if (parsed_command_line.HasSwitch(switches::kIgnoreCertificateErrors))
net::HttpStreamFactory::set_ignore_certificate_errors(true);
if (parsed_command_line.HasSwitch(switches::kHostRules))
net::HttpStreamFactory::SetHostMappingRules(
parsed_command_line.GetSwitchValueASCII(switches::kHostRules));
if (parsed_command_line.HasSwitch(switches::kEnableIPPooling))
net::SpdySessionPool::enable_ip_pooling(true);
if (parsed_command_line.HasSwitch(switches::kDisableIPPooling))
net::SpdySessionPool::enable_ip_pooling(false);
if (parsed_command_line.HasSwitch(switches::kMaxSpdySessionsPerDomain)) {
int value;
base::StringToInt(parsed_command_line.GetSwitchValueASCII(
switches::kMaxSpdySessionsPerDomain),
&value);
net::SpdySessionPool::set_max_sessions_per_domain(value);
}
net::URLRequestThrottlerManager::GetInstance()->set_enable_thread_checks(
true);
SetDnsCertProvenanceCheckerFactory(CreateChromeDnsCertProvenanceChecker);
}
// Creates key child threads. We need to do this explicitly since
// BrowserThread::PostTask silently deletes a posted task if the target message
// loop isn't created.
void CreateChildThreads(BrowserProcessImpl* process) {
process->db_thread();
process->file_thread();
process->process_launcher_thread();
process->cache_thread();
process->io_thread();
// Create watchdog thread after creating all other threads because it will
// watch the other threads and they must be running.
process->watchdog_thread();
}
// Returns the new local state object, guaranteed non-NULL.
PrefService* InitializeLocalState(const CommandLine& parsed_command_line,
bool is_first_run) {
FilePath local_state_path;
PathService::Get(chrome::FILE_LOCAL_STATE, &local_state_path);
bool local_state_file_exists = file_util::PathExists(local_state_path);
// Load local state. This includes the application locale so we know which
// locale dll to load.
PrefService* local_state = g_browser_process->local_state();
DCHECK(local_state);
// TODO(brettw,*): this comment about ResourceBundle was here since
// initial commit. This comment seems unrelated, bit-rotten and
// a candidate for removal.
// Initialize ResourceBundle which handles files loaded from external
// sources. This has to be done before uninstall code path and before prefs
// are registered.
local_state->RegisterStringPref(prefs::kApplicationLocale, std::string());
#if defined(OS_CHROMEOS)
local_state->RegisterStringPref(prefs::kOwnerLocale, std::string());
local_state->RegisterStringPref(prefs::kHardwareKeyboardLayout,
std::string());
#endif // defined(OS_CHROMEOS)
#if !defined(OS_CHROMEOS)
local_state->RegisterBooleanPref(prefs::kMetricsReportingEnabled,
GoogleUpdateSettings::GetCollectStatsConsent());
#endif // !defined(OS_CHROMEOS)
if (is_first_run) {
#if defined(OS_WIN)
// During first run we read the google_update registry key to find what
// language the user selected when downloading the installer. This
// becomes our default language in the prefs.
// Other platforms obey the system locale.
std::wstring install_lang;
if (GoogleUpdateSettings::GetLanguage(&install_lang)) {
local_state->SetString(prefs::kApplicationLocale,
WideToASCII(install_lang));
}
#endif // defined(OS_WIN)
}
// If the local state file for the current profile doesn't exist and the
// parent profile command line flag is present, then we should inherit some
// local state from the parent profile.
// Checking that the local state file for the current profile doesn't exist
// is the most robust way to determine whether we need to inherit or not
// since the parent profile command line flag can be present even when the
// current profile is not a new one, and in that case we do not want to
// inherit and reset the user's setting.
if (!local_state_file_exists &&
parsed_command_line.HasSwitch(switches::kParentProfile)) {
FilePath parent_profile =
parsed_command_line.GetSwitchValuePath(switches::kParentProfile);
scoped_ptr<PrefService> parent_local_state(
PrefService::CreatePrefService(parent_profile, NULL, NULL));
parent_local_state->RegisterStringPref(prefs::kApplicationLocale,
std::string());
// Right now, we only inherit the locale setting from the parent profile.
local_state->SetString(
prefs::kApplicationLocale,
parent_local_state->GetString(prefs::kApplicationLocale));
}
#if defined(OS_CHROMEOS)
if (parsed_command_line.HasSwitch(switches::kLoginManager)) {
std::string owner_locale = local_state->GetString(prefs::kOwnerLocale);
// Ensure that we start with owner's locale.
if (!owner_locale.empty() &&
local_state->GetString(prefs::kApplicationLocale) != owner_locale &&
!local_state->IsManagedPreference(prefs::kApplicationLocale)) {
local_state->SetString(prefs::kApplicationLocale, owner_locale);
local_state->ScheduleSavePersistentPrefs();
}
}
#endif
return local_state;
}
// Windows-specific initialization code for the sandbox broker services. This
// is just a NOP on non-Windows platforms to reduce ifdefs later on.
void InitializeBrokerServices(const MainFunctionParams& parameters,
const CommandLine& parsed_command_line) {
#if defined(OS_WIN)
sandbox::BrokerServices* broker_services =
parameters.sandbox_info_.BrokerServices();
if (broker_services) {
sandbox::InitBrokerServices(broker_services);
if (!parsed_command_line.HasSwitch(switches::kNoSandbox)) {
bool use_winsta = !parsed_command_line.HasSwitch(
switches::kDisableAltWinstation);
// Precreate the desktop and window station used by the renderers.
sandbox::TargetPolicy* policy = broker_services->CreatePolicy();
sandbox::ResultCode result = policy->CreateAlternateDesktop(use_winsta);
CHECK(sandbox::SBOX_ERROR_FAILED_TO_SWITCH_BACK_WINSTATION != result);
policy->Release();
}
}
#endif
}
// Initializes the metrics service with the configuration for this process,
// returning the created service (guaranteed non-NULL).
MetricsService* InitializeMetrics(const CommandLine& parsed_command_line,
const PrefService* local_state) {
#if defined(OS_WIN)
if (parsed_command_line.HasSwitch(switches::kChromeFrame))
MetricsLog::set_version_extension("-F");
#elif defined(ARCH_CPU_64_BITS)
MetricsLog::set_version_extension("-64");
#endif // defined(OS_WIN)
MetricsService* metrics = g_browser_process->metrics_service();
if (parsed_command_line.HasSwitch(switches::kMetricsRecordingOnly) ||
parsed_command_line.HasSwitch(switches::kEnableBenchmarking)) {
// If we're testing then we don't care what the user preference is, we turn
// on recording, but not reporting, otherwise tests fail.
metrics->StartRecordingOnly();
} else {
// If the user permits metrics reporting with the checkbox in the
// prefs, we turn on recording. We disable metrics completely for
// non-official builds.
#if defined(GOOGLE_CHROME_BUILD)
#if defined(OS_CHROMEOS)
bool enabled = chromeos::MetricsCrosSettingsProvider::GetMetricsStatus();
#else
bool enabled = local_state->GetBoolean(prefs::kMetricsReportingEnabled);
#endif // #if defined(OS_CHROMEOS)
if (enabled) {
metrics->Start();
chrome_browser_net_websocket_experiment::
WebSocketExperimentRunner::Start();
}
#endif
}
return metrics;
}
// Initializes the profile, possibly doing some user prompting to pick a
// fallback profile. Returns the newly created profile, or NULL if startup
// should not continue.
Profile* CreateProfile(const MainFunctionParams& parameters,
const FilePath& user_data_dir) {
Profile* profile = g_browser_process->profile_manager()->GetDefaultProfile(
user_data_dir);
if (profile)
return profile;
#if defined(OS_WIN)
// Ideally, we should be able to run w/o access to disk. For now, we
// prompt the user to pick a different user-data-dir and restart chrome
// with the new dir.
// http://code.google.com/p/chromium/issues/detail?id=11510
FilePath new_user_data_dir = UserDataDirDialog::RunUserDataDirDialog(
user_data_dir);
if (!parameters.ui_task && browser_shutdown::delete_resources_on_shutdown) {
// Only delete the resources if we're not running tests. If we're running
// tests the resources need to be reused as many places in the UI cache
// SkBitmaps from the ResourceBundle.
ResourceBundle::CleanupSharedInstance();
}
if (!new_user_data_dir.empty()) {
// Because of the way CommandLine parses, it's sufficient to append a new
// --user-data-dir switch. The last flag of the same name wins.
// TODO(tc): It would be nice to remove the flag we don't want, but that
// sounds risky if we parse differently than CommandLineToArgvW.
CommandLine new_command_line = parameters.command_line_;
new_command_line.AppendSwitchPath(switches::kUserDataDir,
new_user_data_dir);
base::LaunchApp(new_command_line, false, false, NULL);
}
#else
// TODO(port): fix this. See comments near the definition of
// user_data_dir. It is better to CHECK-fail here than it is to
// silently exit because of missing code in the above test.
CHECK(profile) << "Cannot get default profile.";
#endif
return NULL;
}
#if defined(OS_WIN)
// gfx::Font callbacks
void AdjustUIFont(LOGFONT* logfont) {
l10n_util::AdjustUIFont(logfont);
}
int GetMinimumFontSize() {
int min_font_size;
base::StringToInt(l10n_util::GetStringUTF16(IDS_MINIMUM_UI_FONT_SIZE),
&min_font_size);
return min_font_size;
}
#endif
#if defined(TOOLKIT_USES_GTK)
static void GLibLogHandler(const gchar* log_domain,
GLogLevelFlags log_level,
const gchar* message,
gpointer userdata) {
if (!log_domain)
log_domain = "<unknown>";
if (!message)
message = "<no message>";
if (strstr(message, "Loading IM context type") ||
strstr(message, "wrong ELF class: ELFCLASS64")) {
// http://crbug.com/9643
// Until we have a real 64-bit build or all of these 32-bit package issues
// are sorted out, don't fatal on ELF 32/64-bit mismatch warnings and don't
// spam the user with more than one of them.
static bool alerted = false;
if (!alerted) {
LOG(ERROR) << "Bug 9643: " << log_domain << ": " << message;
alerted = true;
}
} else if (strstr(message, "gtk_widget_size_allocate(): attempt to "
"allocate widget with width") &&
!GTK_CHECK_VERSION(2, 16, 1)) {
// This warning only occurs in obsolete versions of GTK and is harmless.
// http://crbug.com/11133
} else if (strstr(message, "Theme file for default has no") ||
strstr(message, "Theme directory") ||
strstr(message, "theme pixmap")) {
LOG(ERROR) << "GTK theme error: " << message;
} else if (strstr(message, "gtk_drag_dest_leave: assertion")) {
LOG(ERROR) << "Drag destination deleted: http://crbug.com/18557";
} else if (strstr(message, "Out of memory") &&
strstr(log_domain, "<unknown>")) {
LOG(ERROR) << "DBus call timeout or out of memory: "
<< "http://crosbug.com/15496";
} else {
LOG(DFATAL) << log_domain << ": " << message;
}
}
static void SetUpGLibLogHandler() {
// Register GLib-handled assertions to go through our logging system.
const char* kLogDomains[] = { NULL, "Gtk", "Gdk", "GLib", "GLib-GObject" };
for (size_t i = 0; i < arraysize(kLogDomains); i++) {
g_log_set_handler(kLogDomains[i],
static_cast<GLogLevelFlags>(G_LOG_FLAG_RECURSION |
G_LOG_FLAG_FATAL |
G_LOG_LEVEL_ERROR |
G_LOG_LEVEL_CRITICAL |
G_LOG_LEVEL_WARNING),
GLibLogHandler,
NULL);
}
}
#endif
void InitializeToolkit(const MainFunctionParams& parameters) {
// TODO(evan): this function is rather subtle, due to the variety
// of intersecting ifdefs we have. To keep it easy to follow, there
// are no #else branches on any #ifs.
#if defined(TOOLKIT_USES_GTK)
// We want to call g_thread_init(), but in some codepaths (tests) it
// is possible it has already been called. In older versions of
// GTK, it is an error to call g_thread_init twice; unfortunately,
// the API to tell whether it has been called already was also only
// added in a newer version of GTK! Thankfully, this non-intuitive
// check is actually equivalent and sufficient to work around the
// error.
if (!g_thread_supported())
g_thread_init(NULL);
// Glib type system initialization. Needed at least for gconf,
// used in net/proxy/proxy_config_service_linux.cc. Most likely
// this is superfluous as gtk_init() ought to do this. It's
// definitely harmless, so retained as a reminder of this
// requirement for gconf.
g_type_init();
// We use glib-dbus for geolocation and it's possible other libraries
// (e.g. gnome-keyring) will use it, so initialize its threading here
// as well.
dbus_g_thread_init();
gfx::GtkInitFromCommandLine(parameters.command_line_);
SetUpGLibLogHandler();
#endif
#if defined(TOOLKIT_GTK)
// It is important for this to happen before the first run dialog, as it
// styles the dialog as well.
gtk_util::InitRCStyles();
#endif
#if defined(TOOLKIT_VIEWS)
// The delegate needs to be set before any UI is created so that windows
// display the correct icon.
if (!views::ViewsDelegate::views_delegate)
views::ViewsDelegate::views_delegate = new ChromeViewsDelegate;
#if defined(TOOLKIT_USES_GTK)
// TODO(beng): Move to WidgetImpl and implement on Windows too!
if (parameters.command_line_.HasSwitch(switches::kDebugViewsPaint))
views::WidgetGtk::EnableDebugPaint();
#endif
#endif
#if defined(OS_WIN)
gfx::PlatformFontWin::adjust_font_callback = &AdjustUIFont;
gfx::PlatformFontWin::get_minimum_font_size_callback = &GetMinimumFontSize;
// Init common control sex.
INITCOMMONCONTROLSEX config;
config.dwSize = sizeof(config);
config.dwICC = ICC_WIN95_CLASSES;
InitCommonControlsEx(&config);
#endif
}
#if defined(OS_CHROMEOS)
// Class is used to login using passed username and password.
// The instance will be deleted upon success or failure.
class StubLogin : public chromeos::LoginStatusConsumer,
public chromeos::LoginUtils::Delegate {
public:
explicit StubLogin(std::string username, std::string password) {
authenticator_ = chromeos::LoginUtils::Get()->CreateAuthenticator(this);
authenticator_.get()->AuthenticateToLogin(
g_browser_process->profile_manager()->GetDefaultProfile(),
username,
password,
std::string(),
std::string());
}
void OnLoginFailure(const chromeos::LoginFailure& error) {
LOG(ERROR) << "Login Failure: " << error.GetErrorString();
delete this;
}
void OnLoginSuccess(const std::string& username,
const std::string& password,
const GaiaAuthConsumer::ClientLoginResult& credentials,
bool pending_requests) {
// Will call OnProfilePrepared in the end.
chromeos::LoginUtils::Get()->PrepareProfile(username,
password,
credentials,
pending_requests,
this);
}
// LoginUtils::Delegate implementation:
virtual void OnProfilePrepared(Profile* profile) {
chromeos::LoginUtils::DoBrowserLaunch(profile);
delete this;
}
scoped_refptr<chromeos::Authenticator> authenticator_;
};
void OptionallyRunChromeOSLoginManager(const CommandLine& parsed_command_line) {
if (parsed_command_line.HasSwitch(switches::kLoginManager)) {
std::string first_screen =
parsed_command_line.GetSwitchValueASCII(switches::kLoginScreen);
std::string size_arg =
parsed_command_line.GetSwitchValueASCII(
switches::kLoginScreenSize);
gfx::Size size(0, 0);
// Allow the size of the login window to be set explicitly. If not set,
// default to the entire screen. This is mostly useful for testing.
if (size_arg.size()) {
std::vector<std::string> dimensions;
base::SplitString(size_arg, ',', &dimensions);
if (dimensions.size() == 2) {
int width, height;
if (base::StringToInt(dimensions[0], &width) &&
base::StringToInt(dimensions[1], &height))
size.SetSize(width, height);
}
}
browser::ShowLoginWizard(first_screen, size);
} else if (parsed_command_line.HasSwitch(switches::kLoginUser) &&
parsed_command_line.HasSwitch(switches::kLoginPassword)) {
chromeos::BootTimesLoader::Get()->RecordLoginAttempted();
new StubLogin(
parsed_command_line.GetSwitchValueASCII(switches::kLoginUser),
parsed_command_line.GetSwitchValueASCII(switches::kLoginPassword));
}
}
#else
void OptionallyRunChromeOSLoginManager(const CommandLine& parsed_command_line) {
// Dummy empty function for non-ChromeOS builds to avoid extra ifdefs below.
}
#endif // defined(OS_CHROMEOS)
#if defined(OS_MACOSX)
OSStatus KeychainCallback(SecKeychainEvent keychain_event,
SecKeychainCallbackInfo *info, void *context) {
return noErr;
}
#endif
} // namespace
#if defined(OS_CHROMEOS)
// Allows authenticator to be invoked without adding refcounting. The instances
// will delete themselves upon completion.
DISABLE_RUNNABLE_METHOD_REFCOUNT(StubLogin);
#endif
#if defined(OS_WIN)
#define DLLEXPORT __declspec(dllexport)
// We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
extern "C" {
DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded();
}
DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded() {
// Need an instance of AtExitManager to handle singleton creations and
// deletions. We need this new instance because, the old instance created
// in ChromeMain() got destructed when the function returned.
base::AtExitManager exit_manager;
upgrade_util::RelaunchChromeBrowserWithNewCommandLineIfNeeded();
}
#endif
#if defined(USE_LINUX_BREAKPAD)
bool IsMetricsReportingEnabled(const PrefService* local_state) {
// Check whether we should initialize the crash reporter. It may be disabled
// through configuration policy or user preference.
// The kHeadless environment variable overrides the decision, but only if the
// crash service is under control of the user. It is used by QA testing
// infrastructure to switch on generation of crash reports.
#if defined(OS_CHROMEOS)
bool breakpad_enabled =
chromeos::MetricsCrosSettingsProvider::GetMetricsStatus();
if (!breakpad_enabled)
breakpad_enabled = getenv(env_vars::kHeadless) != NULL;
#else
const PrefService::Preference* metrics_reporting_enabled =
local_state->FindPreference(prefs::kMetricsReportingEnabled);
CHECK(metrics_reporting_enabled);
bool breakpad_enabled =
local_state->GetBoolean(prefs::kMetricsReportingEnabled);
if (!breakpad_enabled && metrics_reporting_enabled->IsUserModifiable())
breakpad_enabled = getenv(env_vars::kHeadless) != NULL;
#endif // #if defined(OS_CHROMEOS)
return breakpad_enabled;
}
#endif // #if defined(USE_LINUX_BREAKPAD)
// Main routine for running as the Browser process.
int BrowserMain(const MainFunctionParams& parameters) {
TRACE_EVENT_BEGIN("BrowserMain", 0, "");
// If we're running tests (ui_task is non-null).
if (parameters.ui_task)
browser_defaults::enable_help_app = false;
scoped_ptr<BrowserMainParts>
parts(BrowserMainParts::CreateBrowserMainParts(parameters));
parts->EarlyInitialization();
// Must happen before we try to use a message loop or display any UI.
InitializeToolkit(parameters);
parts->MainMessageLoopStart();
// WARNING: If we get a WM_ENDSESSION, objects created on the stack here
// are NOT deleted. If you need something to run during WM_ENDSESSION add it
// to browser_shutdown::Shutdown or BrowserProcess::EndSession.
// !!!!!!!!!! READ ME !!!!!!!!!!
// I (viettrungluu) am in the process of refactoring |BrowserMain()|. If you
// need to add something above this comment, read the documentation in
// browser_main.h. If you need to add something below, please do the
// following:
// - Figure out where you should add your code. Do NOT just pick a random
// location "which works".
// - Document the dependencies apart from compile-time-checkable ones. What
// must happen before your new code is executed? Does your new code need to
// run before something else? Are there performance reasons for executing
// your code at that point?
// - If you need to create a (persistent) object, heap allocate it and keep a
// |scoped_ptr| to it rather than allocating it on the stack. Otherwise
// I'll have to convert your code when I refactor.
// - Unless your new code is just a couple of lines, factor it out into a
// function with a well-defined purpose. Do NOT just add it inline in
// |BrowserMain()|.
// Thanks!
// TODO(viettrungluu): put the remainder into BrowserMainParts
const CommandLine& parsed_command_line = parameters.command_line_;
base::mac::ScopedNSAutoreleasePool* pool = parameters.autorelease_pool_;
#if defined(OS_WIN) && !defined(NO_TCMALLOC)
// When linking shared libraries, NO_TCMALLOC is defined, and dynamic
// allocator selection is not supported.
// Make this call before going multithreaded, or spawning any subprocesses.
base::allocator::SetupSubprocessAllocator();
#endif // OS_WIN
FilePath user_data_dir;
#if defined(OS_WIN)
PathService::Get(chrome::DIR_USER_DATA, &user_data_dir);
#else
// Getting the user data dir can fail if the directory isn't
// creatable, for example; on Windows in code below we bring up a
// dialog prompting the user to pick a different directory.
// However, ProcessSingleton needs a real user_data_dir on Mac/Linux,
// so it's better to fail here than fail mysteriously elsewhere.
CHECK(PathService::Get(chrome::DIR_USER_DATA, &user_data_dir))
<< "Must be able to get user data directory!";
#endif
ProcessSingleton process_singleton(user_data_dir);
bool is_first_run = FirstRun::IsChromeFirstRun() ||
parsed_command_line.HasSwitch(switches::kFirstRun);
scoped_ptr<BrowserProcessImpl> browser_process;
if (parsed_command_line.HasSwitch(switches::kImport) ||
parsed_command_line.HasSwitch(switches::kImportFromFile)) {
// We use different BrowserProcess when importing so no GoogleURLTracker is
// instantiated (as it makes a net::URLRequest and we don't have an IO
// thread, see bug #1292702).
browser_process.reset(new FirstRunBrowserProcess(parsed_command_line));
is_first_run = false;
} else {
browser_process.reset(new BrowserProcessImpl(parsed_command_line));
}
// BrowserProcessImpl's constructor should set g_browser_process.
DCHECK(g_browser_process);
// This forces the TabCloseableStateWatcher to be created and, on chromeos,
// register for the notifications it needs to track the closeable state of
// tabs.
g_browser_process->tab_closeable_state_watcher();
// The broker service initialization needs to run early because it will
// initialize the sandbox broker, which requires the process to swap its
// window station. During this time all the UI will be broken. This has to
// run before threads and windows are created.
InitializeBrokerServices(parameters, parsed_command_line);
// Initialize histogram statistics gathering system.
base::StatisticsRecorder statistics;
PrefService* local_state = InitializeLocalState(parsed_command_line,
is_first_run);
#if defined(USE_LINUX_BREAKPAD)
// Needs to be called after we have chrome::DIR_USER_DATA and
// g_browser_process.
g_browser_process->file_thread()->message_loop()->PostTask(FROM_HERE,
new GetLinuxDistroTask());
if (IsMetricsReportingEnabled(local_state))
InitCrashReporter();
#endif
// If we're running tests (ui_task is non-null), then the ResourceBundle
// has already been initialized.
if (parameters.ui_task) {
g_browser_process->SetApplicationLocale("en-US");
} else {
// Mac starts it earlier in |PreMainMessageLoopStart()| (because it is
// needed when loading the MainMenu.nib and the language doesn't depend on
// anything since it comes from Cocoa.
#if defined(OS_MACOSX)
g_browser_process->SetApplicationLocale(l10n_util::GetLocaleOverride());
#else
const std::string locale =
local_state->GetString(prefs::kApplicationLocale);
// On a POSIX OS other than ChromeOS, the parameter that is passed to the
// method InitSharedInstance is ignored.
const std::string loaded_locale =
ResourceBundle::InitSharedInstance(locale);
CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
g_browser_process->SetApplicationLocale(loaded_locale);
FilePath resources_pack_path;
PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
ResourceBundle::AddDataPackToSharedInstance(resources_pack_path);
#endif // defined(OS_MACOSX)
}
#if defined(TOOLKIT_GTK)
g_set_application_name(l10n_util::GetStringUTF8(IDS_PRODUCT_NAME).c_str());
#endif
std::string try_chrome =
parsed_command_line.GetSwitchValueASCII(switches::kTryChromeAgain);
if (!try_chrome.empty()) {
#if defined(OS_WIN)
// Setup.exe has determined that we need to run a retention experiment
// and has lauched chrome to show the experiment UI.
if (process_singleton.FoundOtherProcessWindow()) {
// It seems that we don't need to run the experiment since chrome
// in the same profile is already running.
VLOG(1) << "Retention experiment not required";
return TryChromeDialogView::NOT_NOW;
}
int try_chrome_int;
base::StringToInt(try_chrome, &try_chrome_int);
TryChromeDialogView::Result answer =
TryChromeDialogView::Show(try_chrome_int, &process_singleton);
if (answer == TryChromeDialogView::NOT_NOW)
return ResultCodes::NORMAL_EXIT_CANCEL;
if (answer == TryChromeDialogView::UNINSTALL_CHROME)
return ResultCodes::NORMAL_EXIT_EXP2;
#else
// We don't support retention experiments on Mac or Linux.
return ResultCodes::NORMAL_EXIT;
#endif // defined(OS_WIN)
}
BrowserInit browser_init;
// On first run, we need to process the predictor preferences before the
// browser's profile_manager object is created, but after ResourceBundle
// is initialized.
FirstRun::MasterPrefs master_prefs;
bool first_run_ui_bypass = false; // True to skip first run UI.
if (is_first_run) {
first_run_ui_bypass =
!FirstRun::ProcessMasterPreferences(user_data_dir, &master_prefs);
AddFirstRunNewTabs(&browser_init, master_prefs.new_tabs);
// If we are running in App mode, we do not want to show the importer
// (first run) UI.
if (!first_run_ui_bypass &&
(parsed_command_line.HasSwitch(switches::kApp) ||
parsed_command_line.HasSwitch(switches::kAppId) ||
parsed_command_line.HasSwitch(switches::kNoFirstRun)))
first_run_ui_bypass = true;
}
// TODO(viettrungluu): why don't we run this earlier?
if (!parsed_command_line.HasSwitch(switches::kNoErrorDialogs))
WarnAboutMinimumSystemRequirements();
InitializeNetworkOptions(parsed_command_line);
// Initialize histogram synchronizer system. This is a singleton and is used
// for posting tasks via NewRunnableMethod. Its deleted when it goes out of
// scope. Even though NewRunnableMethod does AddRef and Release, the object
// will not be deleted after the Task is executed.
scoped_refptr<HistogramSynchronizer> histogram_synchronizer(
new HistogramSynchronizer());
// Initialize thread watcher system. This is a singleton and is used by
// WatchDogThread to keep track of information about threads that are being
// watched.
scoped_ptr<ThreadWatcherList> thread_watcher_list(new ThreadWatcherList());
// Initialize the prefs of the local state.
browser::RegisterLocalState(local_state);
// Convert active labs into switches. Modifies the current command line.
about_flags::ConvertFlagsToSwitches(local_state,
CommandLine::ForCurrentProcess());
// Now the command line has been mutated based on about:flags, we can run some
// field trials
parts->SetupFieldTrials();
// Now that all preferences have been registered, set the install date
// for the uninstall metrics if this is our first run. This only actually
// gets used if the user has metrics reporting enabled at uninstall time.
int64 install_date =
local_state->GetInt64(prefs::kUninstallMetricsInstallDate);
if (install_date == 0) {
local_state->SetInt64(prefs::kUninstallMetricsInstallDate,
base::Time::Now().ToTimeT());
}
#if defined(OS_MACOSX)
// Get the Keychain API to register for distributed notifications on the main
// thread, which has a proper CFRunloop, instead of later on the I/O thread,
// which doesn't. This ensures those notifications will get delivered
// properly. See issue 37766.
// (Note that the callback mask here is empty. I don't want to register for
// any callbacks, I just want to initialize the mechanism.)
SecKeychainAddCallback(&KeychainCallback, 0, NULL);
#endif
CreateChildThreads(browser_process.get());
#if defined(OS_CHROMEOS)
// Now that the file thread exists we can record our stats.
chromeos::BootTimesLoader::Get()->RecordChromeMainStats();
// Read locale-specific GTK resource information.
std::string gtkrc = l10n_util::GetStringUTF8(IDS_LOCALE_GTKRC);
if (!gtkrc.empty())
gtk_rc_parse_string(gtkrc.c_str());
// Trigger prefetching of ownership status.
chromeos::OwnershipService::GetSharedInstance()->Prewarm();
#endif
// Record last shutdown time into a histogram.
browser_shutdown::ReadLastShutdownInfo();
#if defined(OS_WIN)
// On Windows, we use our startup as an opportunity to do upgrade/uninstall
// tasks. Those care whether the browser is already running. On Linux/Mac,
// upgrade/uninstall happen separately.
bool already_running = browser_util::IsBrowserAlreadyRunning();
// If the command line specifies 'uninstall' then we need to work here
// unless we detect another chrome browser running.
if (parsed_command_line.HasSwitch(switches::kUninstall))
return DoUninstallTasks(already_running);
#endif
if (parsed_command_line.HasSwitch(switches::kHideIcons) ||
parsed_command_line.HasSwitch(switches::kShowIcons))
return HandleIconsCommands(parsed_command_line);
if (parsed_command_line.HasSwitch(switches::kMakeDefaultBrowser)) {
return ShellIntegration::SetAsDefaultBrowser() ?
ResultCodes::NORMAL_EXIT : ResultCodes::SHELL_INTEGRATION_FAILED;
}
// If the command line specifies --pack-extension, attempt the pack extension
// startup action and exit.
if (parsed_command_line.HasSwitch(switches::kPackExtension)) {
ExtensionsStartupUtil extension_startup_util;
if (extension_startup_util.PackExtension(parsed_command_line)) {
return ResultCodes::NORMAL_EXIT;
} else {
return ResultCodes::PACK_EXTENSION_ERROR;
}
}
#if !defined(OS_MACOSX)
// In environments other than Mac OS X we support import of settings
// from other browsers. In case this process is a short-lived "import"
// process that another browser runs just to import the settings, we
// don't want to be checking for another browser process, by design.
if (!(parsed_command_line.HasSwitch(switches::kImport) ||
parsed_command_line.HasSwitch(switches::kImportFromFile))) {
#endif
// When another process is running, use that process instead of starting a
// new one. NotifyOtherProcess will currently give the other process up to
// 20 seconds to respond. Note that this needs to be done before we attempt
// to read the profile.
switch (process_singleton.NotifyOtherProcessOrCreate()) {
case ProcessSingleton::PROCESS_NONE:
// No process already running, fall through to starting a new one.
break;
case ProcessSingleton::PROCESS_NOTIFIED:
#if defined(OS_POSIX) && !defined(OS_MACOSX)
printf("%s\n", base::SysWideToNativeMB(UTF16ToWide(
l10n_util::GetStringUTF16(IDS_USED_EXISTING_BROWSER))).c_str());
#endif
return ResultCodes::NORMAL_EXIT;
case ProcessSingleton::PROFILE_IN_USE:
return ResultCodes::PROFILE_IN_USE;
case ProcessSingleton::LOCK_ERROR:
LOG(ERROR) << "Failed to create a ProcessSingleton for your profile "
"directory. This means that running multiple instances "
"would start multiple browser processes rather than "
"opening a new window in the existing process. Aborting "
"now to avoid profile corruption.";
return ResultCodes::PROFILE_IN_USE;
default:
NOTREACHED();
}
#if !defined(OS_MACOSX) // closing brace for if
}
#endif
#if defined(USE_X11)
SetBrowserX11ErrorHandlers();
#endif
// Override the default ContentBrowserClient to let Chrome participate in
// content logic. Must be done before any tabs or profiles are created.
chrome::ChromeContentBrowserClient browser_client;
content::GetContentClient()->set_browser(&browser_client);
// Profile creation ----------------------------------------------------------
#if defined(OS_CHROMEOS)
// Stub out chromeos implementations.
if (parsed_command_line.HasSwitch(switches::kStubCros))
chromeos::CrosLibrary::Get()->GetTestApi()->SetUseStubImpl();
// Initialize the screen locker now so that it can receive
// LOGIN_USER_CHANGED notification from UserManager.
chromeos::ScreenLocker::InitClass();
// This forces the ProfileManager to be created and register for the
// notification it needs to track the logged in user.
g_browser_process->profile_manager();
// Allow access to file:// on ChromeOS for tests.
if (parsed_command_line.HasSwitch(switches::kAllowFileAccess)) {
net::URLRequest::AllowFileAccess();
}
// There are two use cases for kLoginUser:
// 1) if passed in tandem with kLoginPassword, to drive a "StubLogin"
// 2) if passed alone, to signal that the indicated user has already
// logged in and we should behave accordingly.
// This handles case 2.
if (parsed_command_line.HasSwitch(switches::kLoginUser) &&
!parsed_command_line.HasSwitch(switches::kLoginPassword)) {
std::string username =
parsed_command_line.GetSwitchValueASCII(switches::kLoginUser);
VLOG(1) << "Relaunching browser for user: " << username;
chromeos::UserManager::Get()->UserLoggedIn(username);
// Redirects Chrome logging to the user data dir.
logging::RedirectChromeLogging(parsed_command_line);
}
#endif
Profile* profile = CreateProfile(parameters, user_data_dir);
if (!profile)
return ResultCodes::NORMAL_EXIT;
// Post-profile init ---------------------------------------------------------
PrefService* user_prefs = profile->GetPrefs();
DCHECK(user_prefs);
// Tests should be able to tune login manager before showing it.
// Thus only show login manager in normal (non-testing) mode.
if (!parameters.ui_task) {
OptionallyRunChromeOSLoginManager(parsed_command_line);
}
#if !defined(OS_MACOSX)
// Importing other browser settings is done in a browser-like process
// that exits when this task has finished.
// TODO(port): Port the Mac's IPC-based implementation to other platforms to
// replace this implementation. http://crbug.com/22142
if (parsed_command_line.HasSwitch(switches::kImport) ||
parsed_command_line.HasSwitch(switches::kImportFromFile)) {
return FirstRun::ImportNow(profile, parsed_command_line);
}
#endif
#if defined(OS_WIN)
// Do the tasks if chrome has been upgraded while it was last running.
if (!already_running && upgrade_util::DoUpgradeTasks(parsed_command_line))
return ResultCodes::NORMAL_EXIT;
#endif
// Check if there is any machine level Chrome installed on the current
// machine. If yes and the current Chrome process is user level, we do not
// allow the user level Chrome to run. So we notify the user and uninstall
// user level Chrome.
// Note this check should only happen here, after all the checks above
// (uninstall, resource bundle initialization, other chrome browser
// processes etc).
if (CheckMachineLevelInstall())
return ResultCodes::MACHINE_LEVEL_INSTALL_EXISTS;
// Create the TranslateManager singleton.
TranslateManager::GetInstance();
#if defined(OS_MACOSX)
if (!parsed_command_line.HasSwitch(switches::kNoFirstRun)) {
// Disk image installation is sort of a first-run task, so it shares the
// kNoFirstRun switch.
if (MaybeInstallFromDiskImage()) {
// The application was installed and the installed copy has been
// launched. This process is now obsolete. Exit.
return ResultCodes::NORMAL_EXIT;
}
}
#endif
// Show the First Run UI if this is the first time Chrome has been run on
// this computer, or we're being compelled to do so by a command line flag.
// Note that this be done _after_ the PrefService is initialized and all
// preferences are registered, since some of the code that the importer
// touches reads preferences.
if (is_first_run) {
if (!first_run_ui_bypass) {
FirstRun::AutoImport(profile,
master_prefs.homepage_defined,
master_prefs.do_import_items,
master_prefs.dont_import_items,
master_prefs.run_search_engine_experiment,
master_prefs.randomize_search_engine_experiment,
master_prefs.make_chrome_default,
&process_singleton);
#if defined(OS_POSIX)
// On Windows, the download is tagged with enable/disable stats so there
// is no need for this code.
// If stats reporting was turned on by the first run dialog then toggle
// the pref.
if (GoogleUpdateSettings::GetCollectStatsConsent())
local_state->SetBoolean(prefs::kMetricsReportingEnabled, true);
#endif // OS_POSIX
} // if (!first_run_ui_bypass)
Browser::SetNewHomePagePrefs(user_prefs);
}
// Sets things up so that if we crash from this point on, a dialog will
// popup asking the user to restart chrome. It is done this late to avoid
// testing against a bunch of special cases that are taken care early on.
PrepareRestartOnCrashEnviroment(parsed_command_line);
#if defined(OS_WIN)
// Registers Chrome with the Windows Restart Manager, which will restore the
// Chrome session when the computer is restarted after a system update.
// This could be run as late as WM_QUERYENDSESSION for system update reboots,
// but should run on startup if extended to handle crashes/hangs/patches.
// Also, better to run once here than once for each HWND's WM_QUERYENDSESSION.
if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
bool result = RegisterApplicationRestart(parsed_command_line);
DCHECK(result);
}
#endif // OS_WIN
// Initialize and maintain network predictor module, which handles DNS
// pre-resolution, as well as TCP/IP connection pre-warming.
// This also registers an observer to discard data when closing incognito
// mode.
bool preconnect_enabled = true; // Default status (easy to change!).
if (parsed_command_line.HasSwitch(switches::kDisablePreconnect))
preconnect_enabled = false;
else if (parsed_command_line.HasSwitch(switches::kEnablePreconnect))
preconnect_enabled = true;
chrome_browser_net::PredictorInit dns_prefetch(
user_prefs,
local_state,
preconnect_enabled);
#if defined(OS_WIN)
app::win::ScopedCOMInitializer com_initializer;
#if defined(GOOGLE_CHROME_BUILD)
// Init the RLZ library. This just binds the dll and schedules a task on the
// file thread to be run sometime later. If this is the first run we record
// the installation event.
RLZTracker::InitRlzDelayed(is_first_run, master_prefs.ping_delay);
#endif // GOOGLE_CHROME_BUILD
#endif // OS_WIN
// Configure modules that need access to resources.
net::NetModule::SetResourceProvider(chrome_common_net::NetResourceProvider);
// Register our global network handler for chrome:// and
// chrome-extension:// URLs.
ChromeURLDataManagerBackend::Register();
RegisterExtensionProtocols();
RegisterMetadataURLRequestHandler();
RegisterBlobURLRequestJobFactory();
RegisterFileSystemURLRequestJobFactory();
// In unittest mode, this will do nothing. In normal mode, this will create
// the global GoogleURLTracker and IntranetRedirectDetector instances, which
// will promptly go to sleep for five and seven seconds, respectively (to
// avoid slowing startup), and wake up afterwards to see if they should do
// anything else.
//
// A simpler way of doing all this would be to have some function which could
// give the time elapsed since startup, and simply have these objects check
// that when asked to initialize themselves, but this doesn't seem to exist.
//
// These can't be created in the BrowserProcessImpl constructor because they
// need to read prefs that get set after that runs.
browser_process->google_url_tracker();
browser_process->intranet_redirect_detector();
// Do initialize the plug-in service (and related preferences).
PluginService::InitGlobalInstance(profile);
// Prepare for memory caching of SDCH dictionaries.
// Perform A/B test to measure global impact of SDCH support.
// Set up a field trial to see what disabling SDCH does to latency of page
// layout globally.
base::FieldTrial::Probability kSDCH_DIVISOR = 1000;
base::FieldTrial::Probability kSDCH_DISABLE_PROBABILITY = 1; // 0.1% prob.
// After June 30, 2011 builds, it will always be in default group.
scoped_refptr<base::FieldTrial> sdch_trial(
new base::FieldTrial("GlobalSdch", kSDCH_DIVISOR, "global_enable_sdch",
2011, 6, 30));
int sdch_enabled = sdch_trial->kDefaultGroupNumber;
// Use default of "" so that all domains are supported.
std::string sdch_supported_domain("");
if (parsed_command_line.HasSwitch(switches::kSdchFilter)) {
sdch_supported_domain =
parsed_command_line.GetSwitchValueASCII(switches::kSdchFilter);
} else {
sdch_trial->AppendGroup("global_disable_sdch",
kSDCH_DISABLE_PROBABILITY);
if (sdch_enabled != sdch_trial->group())
sdch_supported_domain = "never_enabled_sdch_for_any_domain";
}
net::SdchManager sdch_manager; // Singleton database.
sdch_manager.set_sdch_fetcher(new SdchDictionaryFetcher);
sdch_manager.EnableSdchSupport(sdch_supported_domain);
MetricsService* metrics = InitializeMetrics(parsed_command_line, local_state);
InstallJankometer(parsed_command_line);
#if defined(OS_WIN) && !defined(GOOGLE_CHROME_BUILD)
if (parsed_command_line.HasSwitch(switches::kDebugPrint)) {
FilePath path =
parsed_command_line.GetSwitchValuePath(switches::kDebugPrint);
printing::PrintedDocument::set_debug_dump_path(path);
}
#endif
#if defined(TOUCH_UI)
views::RootView::SetKeepMouseCursor(
CommandLine::ForCurrentProcess()->HasSwitch(switches::kKeepMouseCursor));
#endif
HandleTestParameters(parsed_command_line);
RecordBreakpadStatusUMA(metrics);
about_flags::RecordUMAStatistics(local_state);
#if defined(OS_CHROMEOS)
metrics->StartExternalMetrics();
// Initialize the brightness observer so that we'll display an onscreen
// indication of brightness changes during login.
static chromeos::BrightnessObserver* brightness_observer =
new chromeos::BrightnessObserver();
chromeos::CrosLibrary::Get()->GetBrightnessLibrary()->AddObserver(
brightness_observer);
// Listen for system key events so that the user will be able to adjust the
// volume on the login screen.
chromeos::SystemKeyEventListener::GetInstance();
#endif
// Initialize extension event routers. Note that on Chrome OS, this will
// not succeed if the user has not logged in yet, in which case the
// event routers are initialized in LoginUtilsImpl::CompleteLogin instead.
if (profile->GetExtensionService()) {
// This will initialize bookmarks. Call it after bookmark import is done.
// See issue 40144.
profile->GetExtensionService()->InitEventRouters();
}
// The extension service may be available at this point. If the command line
// specifies --uninstall-extension, attempt the uninstall extension startup
// action.
if (parsed_command_line.HasSwitch(switches::kUninstallExtension)) {
ExtensionsStartupUtil ext_startup_util;
if (ext_startup_util.UninstallExtension(parsed_command_line, profile)) {
return ResultCodes::NORMAL_EXIT;
} else {
return ResultCodes::UNINSTALL_EXTENSION_ERROR;
}
}
#if defined(OS_WIN)
// We check this here because if the profile is OTR (chromeos possibility)
// it won't still be accessible after browser is destroyed.
bool record_search_engine = is_first_run && !profile->IsOffTheRecord();
#endif
// ChildProcess:: is a misnomer unless you consider context. Use
// of --wait-for-debugger only makes sense when Chrome itself is a
// child process (e.g. when launched by PyAuto).
if (parsed_command_line.HasSwitch(switches::kWaitForDebugger)) {
ChildProcess::WaitForDebugger("Browser");
}
// If remoting or cloud print proxy is enabled and setup has been completed
// we start the service process here.
// The prerequisite for running the service process is that we have IO, UI
// and PROCESS_LAUNCHER threads up and running.
// TODO(hclam): Need to check for cloud print proxy too.
if (parsed_command_line.HasSwitch(switches::kEnableRemoting)) {
if (user_prefs->GetBoolean(prefs::kRemotingHasSetupCompleted)) {
ServiceProcessControl* control =
ServiceProcessControlManager::GetInstance()->GetProcessControl(
profile);
control->Launch(NULL, NULL);
}
}
#if defined(OS_CHROMEOS)
// Run the Out of Memory priority manager while in this scope. Wait
// until here to start so that we give the most amount of time for
// the other services to start up before we start adjusting the oom
// priority. In reality, it doesn't matter much where in this scope
// this is started, but it must be started in this scope so it will
// also be terminated when this scope exits.
scoped_ptr<browser::OomPriorityManager> oom_priority_manager(
new browser::OomPriorityManager);
#endif
// Create the instance of the cloud print proxy service so that it can launch
// the service process if needed. This is needed because the service process
// might have shutdown because an update was available.
profile->GetCloudPrintProxyService();
// Schedule a GPU blacklist auto update. This also loads the current one.
scoped_refptr<GpuBlacklistUpdater> gpu_blacklist_updater =
new GpuBlacklistUpdater();
// Don't start auto update in tests.
if (parsed_command_line.GetSwitchValueASCII(switches::kUseGL) !=
gfx::kGLImplementationOSMesaName) {
gpu_blacklist_updater->StartAfterDelay();
}
// Start watching all browser threads for responsiveness.
ThreadWatcherList::StartWatchingAll();
int result_code = ResultCodes::NORMAL_EXIT;
if (parameters.ui_task) {
// We are in test mode. Run one task and enter the main message loop.
if (pool)
pool->Recycle();
parameters.ui_task->Run();
delete parameters.ui_task;
} else {
// Most general initialization is behind us, but opening a
// tab and/or session restore and such is still to be done.
base::TimeTicks browser_open_start = base::TimeTicks::Now();
// We are in regular browser boot sequence. Open initial tabs and enter the
// main message loop.
if (browser_init.Start(parsed_command_line, FilePath(), profile,
&result_code)) {
#if (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)
// Initialize autoupdate timer. Timer callback costs basically nothing
// when browser is not in persistent mode, so it's OK to let it ride on
// the main thread. This needs to be done here because we don't want
// to start the timer when Chrome is run inside a test harness.
g_browser_process->StartAutoupdateTimer();
#endif
#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
// On Linux, the running exe will be updated if an upgrade becomes
// available while the browser is running. We need to save the last
// modified time of the exe, so we can compare to determine if there is
// an upgrade while the browser is kept alive by a persistent extension.
upgrade_util::SaveLastModifiedTimeOfExe();
#endif
// Record now as the last successful chrome start.
GoogleUpdateSettings::SetLastRunTime();
// Call Recycle() here as late as possible, before going into the loop
// because Start() will add things to it while creating the main window.
if (pool)
pool->Recycle();
UMA_HISTOGRAM_MEDIUM_TIMES("Startup.BrowserOpenTabs",
base::TimeTicks::Now() - browser_open_start);
RunUIMessageLoop(browser_process.get());
}
}
#if defined(OS_WIN)
// If it's the first run, log the search engine chosen. We wait until
// shutdown because otherwise we can't be sure the user has finished
// selecting a search engine through the dialog reached from the first run
// bubble link.
if (record_search_engine) {
const TemplateURL* default_search_engine =
profile->GetTemplateURLModel()->GetDefaultSearchProvider();
// The default engine can be NULL if the administrator has disabled
// default search.
SearchEngineType search_engine_type =
default_search_engine ? default_search_engine->search_engine_type() :
SEARCH_ENGINE_OTHER;
// Record the search engine chosen.
if (master_prefs.run_search_engine_experiment) {
UMA_HISTOGRAM_ENUMERATION(
"Chrome.SearchSelectExperiment",
search_engine_type,
SEARCH_ENGINE_MAX);
// If the selection has been randomized, also record the winner by slot.
if (master_prefs.randomize_search_engine_experiment) {
size_t engine_pos = profile->GetTemplateURLModel()->
GetSearchEngineDialogSlot();
if (engine_pos < 4) {
std::string experiment_type = "Chrome.SearchSelectExperimentSlot";
// Nicer in UMA if slots are 1-based.
experiment_type.push_back('1' + engine_pos);
UMA_HISTOGRAM_ENUMERATION(
experiment_type,
search_engine_type,
SEARCH_ENGINE_MAX);
} else {
NOTREACHED() << "Invalid search engine selection slot.";
}
}
} else {
UMA_HISTOGRAM_ENUMERATION(
"Chrome.SearchSelectExempt",
search_engine_type,
SEARCH_ENGINE_MAX);
}
}
#endif
chrome_browser_net_websocket_experiment::WebSocketExperimentRunner::Stop();
process_singleton.Cleanup();
// Stop all tasks that might run on WatchDogThread.
ThreadWatcherList::StopWatchingAll();
metrics->Stop();
// browser_shutdown takes care of deleting browser_process, so we need to
// release it.
ignore_result(browser_process.release());
browser_shutdown::Shutdown();
#if defined(OS_CHROMEOS)
// To be precise, logout (browser shutdown) is not yet done, but the
// remaining work is negligible, hence we say LogoutDone here.
chromeos::BootTimesLoader::Get()->AddLogoutTimeMarker("LogoutDone",
false);
chromeos::BootTimesLoader::Get()->WriteLogoutTimes();
#endif
TRACE_EVENT_END("BrowserMain", 0, 0);
return result_code;
}