[Invalidations] Add GetInvalidatorState() to Invalidator{,Frontend}

chrome/browser/extensions/api/push_messaging/push_messaging_invalidation_handler.h

Index: chrome/browser/extensions/api/push_messaging/push_messaging_invalidation_handler.h
diff --git a/chrome/browser/extensions/api/push_messaging/push_messaging_invalidation_handler.h b/chrome/browser/extensions/api/push_messaging/push_messaging_invalidation_handler.h
index 91182f384c06fcc5e62f698a2685b5cf3efd30f8..52ec3852f11007dc94cbc73cd8c765c7b1b1a1ff 100644
--- a/chrome/browser/extensions/api/push_messaging/push_messaging_invalidation_handler.h
+++ b/chrome/browser/extensions/api/push_messaging/push_messaging_invalidation_handler.h
@@ -40,12 +40,11 @@ class PushMessagingInvalidationHandler : public PushMessagingInvalidationMapper,
   virtual void UnregisterExtension(const std::string& extension_id) OVERRIDE;
 
   // InvalidationHandler implementation.
-  virtual void OnNotificationsEnabled() OVERRIDE;
-  virtual void OnNotificationsDisabled(
-      syncer::NotificationsDisabledReason reason) OVERRIDE;
-  virtual void OnIncomingNotification(
+  virtual void OnInvalidatorStateChange(
+      syncer::InvalidatorState state) OVERRIDE;
+  virtual void OnIncomingInvalidation(
       const syncer::ObjectIdStateMap& id_state_map,
-      syncer::IncomingNotificationSource source) OVERRIDE;
+      syncer::IncomingInvalidationSource source) OVERRIDE;
 
   const std::set<std::string>& GetRegisteredExtensionsForTest() const {
     return registered_extensions_;