Crash recover no longer uses icicle.

 Bug 5508252
 Changed load state to use the crash recovery state every
 time instead of using icicle. When the state is saved,
 the value is written synchronously.
 Moved settings from CrashRecoveryHandler to BrowserSettings

Change-Id: I1a241d4c488fe3246c7d7f1ee0ce26c42ba29429
5 files changed