debuggerd now notifies the Activity Manager about native crashes

The Activity Manager sets up a permission-guarded domain socket, which
debuggerd connects to when a crash happens.  If this is successful,
the daemon then mirrors the logged crash report to that socket, then
closes it.

Bug 8322568

Change-Id: Ife0c772a628ef82e8457094e511ce1edbfe57460
6 files changed