Code: void SyncManager::SyncInternal::UpdateEnabledTypes() {
  DCHECK(thread_checker_.CalledOnValidThread());
  ModelSafeRoutingInfo routes;
   registrar_->GetModelSafeRoutingInfo(&routes);
   const ModelTypeSet enabled_types = GetRoutingInfoTypes(routes);
   sync_notifier_->UpdateEnabledTypes(enabled_types);
  if (enable_sync_tabs_for_other_clients_)
    MaybeSetSyncTabsInNigoriNode(enabled_types);
}

Vulnerability Type: DoS 
CWE ID: CWE-362
Summary: Race condition in Google Chrome before 22.0.1229.79 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the plug-in paint buffer.
Commit Message: [Sync] Cleanup all tab sync enabling logic now that its on by default.

BUG=none
TEST=


Review URL: https://chromiumcodereview.appspot.com/10443046

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@139462 0039d316-1c4b-4281-b951-d872f2087c98