GitLab

BUG=180903,238998,230464
TEST=Induce browser crash in multi-profile sessions, observe that all user sessions are restored
TEST=CrashRestoreSimpleTest, CrashRestoreComplexTest
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/15929005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@202647 0039d316-1c4b-4281-b951-d872f2087c98