[SYNC] Refactor SyncSourceInfo and add support in chrome invalidation client ...

chrome/browser/sync/notifier/chrome_invalidation_client.h

 // Copyright (c) 2010 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.
 //
 // A simple wrapper around invalidation::InvalidationClient that
 // handles all the startup/shutdown details and hookups.
 
 #ifndef CHROME_BROWSER_SYNC_NOTIFIER_CHROME_INVALIDATION_CLIENT_H_
 #define CHROME_BROWSER_SYNC_NOTIFIER_CHROME_INVALIDATION_CLIENT_H_
 #pragma once
@@ skipping 23 matching lines @@
 // properly notify invalidation_client_.
 
 class ChromeInvalidationClient
     : public invalidation::InvalidationListener,
       public StateWriter {
  public:
   class Listener {
    public:
     virtual ~Listener();
 
-    virtual void OnInvalidate(syncable::ModelType model_type) = 0;
+    virtual void OnInvalidate(syncable::ModelType model_type,
+                              const std::string& payload) = 0;
 
     virtual void OnInvalidateAll() = 0;
   };
 
   ChromeInvalidationClient();
 
   // Calls Stop().
   virtual ~ChromeInvalidationClient();
 
   // Does not take ownership of |listener| or |state_writer|.
@@ skipping 55 matching lines @@
   scoped_ptr<CacheInvalidationPacketHandler>
       cache_invalidation_packet_handler_;
   scoped_ptr<RegistrationManager> registration_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeInvalidationClient);
 };
 
 }  // namespace sync_notifier
 
 #endif  // CHROME_BROWSER_SYNC_NOTIFIER_CHROME_INVALIDATION_CLIENT_H_