[Sync] Move //components/sync to the syncer namespace, take 2.

chrome/browser/ui/ash/app_sync_ui_state.h

Index: chrome/browser/ui/ash/app_sync_ui_state.h
diff --git a/chrome/browser/ui/ash/app_sync_ui_state.h b/chrome/browser/ui/ash/app_sync_ui_state.h
index 531c006fbdb41107788cf846a7babadce94684fa..ea29c73094e67030603dda71a5971bcad15de643 100644
--- a/chrome/browser/ui/ash/app_sync_ui_state.h
+++ b/chrome/browser/ui/ash/app_sync_ui_state.h
@@ -31,7 +31,7 @@ class ExtensionRegistry;
 // normal user profile (i.e. it does not watch for guest profile or exsiting
 // user profile) and lasts for at the most 1 minute.
 class AppSyncUIState : public KeyedService,
-                       public sync_driver::SyncServiceObserver,
+                       public syncer::SyncServiceObserver,
                        public extensions::ExtensionRegistryObserver {
  public:
   enum Status {
@@ -70,7 +70,7 @@ class AppSyncUIState : public KeyedService,
   // Invoked when |max_syncing_status_timer_| fires.
   void OnMaxSyncingTimer();
 
-  // sync_driver::SyncServiceObserver overrides:
+  // syncer::SyncServiceObserver overrides:
   void OnStateChanged() override;
 
   // extensions::ExtensionRegistryObserver overrides: