[Sync] Make P2PNotifier behave more like InvalidationNotifier

chrome/browser/sync/notifier/sync_notifier.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Interface to the sync notifier, which is an object that receives
 // notifications when updates are available for a set of sync types.
 // All the observers are notified when such an event happens.
 
 #ifndef CHROME_BROWSER_SYNC_NOTIFIER_SYNC_NOTIFIER_H_
 #define CHROME_BROWSER_SYNC_NOTIFIER_SYNC_NOTIFIER_H_
@@ skipping 21 matching lines @@
   // SetState must be called once, before any call to
   // UpdateCredentials.
   virtual void SetState(const std::string& state) = 0;
 
   // The observers won't be notified of any notifications until
   // UpdateCredentials is called at least once. It can be called more than
   // once.
   virtual void UpdateCredentials(
       const std::string& email, const std::string& token) = 0;
 
-  virtual void UpdateEnabledTypes(const syncable::ModelTypeSet& types) = 0;
+  virtual void UpdateEnabledTypes(
+      const syncable::ModelTypeSet& enabled_types) = 0;
 
   // This is here only to support the old p2p notification implementation,
   // which is still used by sync integration tests.
   // TODO(akalin): Remove this once we move the integration tests off p2p
   // notifications.
-  virtual void SendNotification() = 0;
+  virtual void SendNotification(
+      const syncable::ModelTypeSet& changed_types) = 0;
 };
 }  // namespace sync_notifier
 
 #endif  // CHROME_BROWSER_SYNC_NOTIFIER_SYNC_NOTIFIER_H_