Fix a crash on a secondary user

Bug: 9054063
Change-Id: I092ab6e0077578d0aca57d2e41dfbc00b46e1ba4
diff --git a/java/src/com/android/inputmethod/latin/RichInputMethodManager.java b/java/src/com/android/inputmethod/latin/RichInputMethodManager.java
index 94513e6..0dd302a 100644
--- a/java/src/com/android/inputmethod/latin/RichInputMethodManager.java
+++ b/java/src/com/android/inputmethod/latin/RichInputMethodManager.java
@@ -54,6 +54,13 @@
         return sInstance;
     }
 
+    // Caveat: This may cause IPC
+    public static boolean isInputMethodManagerValidForUserOfThisProcess(final Context context) {
+        // Basically called to check whether this IME has been triggered by the current user or not
+        return !((InputMethodManager)context.getSystemService(Context.INPUT_METHOD_SERVICE)).
+                getInputMethodList().isEmpty();
+    }
+
     public static void init(final Context context) {
         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
         sInstance.initInternal(context, prefs);
diff --git a/java/src/com/android/inputmethod/latin/setup/LauncherIconVisibilityManager.java b/java/src/com/android/inputmethod/latin/setup/LauncherIconVisibilityManager.java
index 1b893a6..6a7cd9b 100644
--- a/java/src/com/android/inputmethod/latin/setup/LauncherIconVisibilityManager.java
+++ b/java/src/com/android/inputmethod/latin/setup/LauncherIconVisibilityManager.java
@@ -68,8 +68,15 @@
         // 1) the package has been re-installed, 2) the device has been booted,
         // 3) a multiuser has been created.
         // There is no good reason to keep the process alive if this IME isn't a current IME.
-        RichInputMethodManager.init(context);
-        if (!SetupActivity.isThisImeCurrent(context)) {
+        final boolean isCurrentImeOfCurrentUser;
+        if (RichInputMethodManager.isInputMethodManagerValidForUserOfThisProcess(context)) {
+            RichInputMethodManager.init(context);
+            isCurrentImeOfCurrentUser = SetupActivity.isThisImeCurrent(context);
+        } else {
+            isCurrentImeOfCurrentUser = false;
+        }
+
+        if (!isCurrentImeOfCurrentUser) {
             final int myPid = Process.myPid();
             Log.i(TAG, "Killing my process: pid=" + myPid);
             Process.killProcess(myPid);