Use InvalidationClient::Create() instead of creating an Impl directly.

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_
 
@@ skipping 17 matching lines @@
 // properly notify invalidation_client_.
 
 class ChromeInvalidationClient {
  public:
   ChromeInvalidationClient();
 
   ~ChromeInvalidationClient();
 
   // Does not take ownership of |listener| nor |xmpp_client|.
   void Start(
-      const std::string& app_name,
+      const std::string& client_id,
       invalidation::InvalidationListener* listener,
       buzz::XmppClient* xmpp_client);
 
   void Stop();
 
   // The following functions must only be called between calls to
   // Start() and Stop().  See invalidation-client.h for documentation.
 
   void Register(const invalidation::ObjectId& oid,
                 invalidation::RegistrationCallback* callback);
 
   void Unregister(const invalidation::ObjectId& oid,
                   invalidation::RegistrationCallback* callback);
 
  private:
   NonThreadSafe non_thread_safe_;
   ChromeSystemResources chrome_system_resources_;
   scoped_ptr<invalidation::InvalidationClient> invalidation_client_;
   scoped_ptr<CacheInvalidationPacketHandler>
       cache_invalidation_packet_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeInvalidationClient);
 };
 
 }  // namespace sync_notifier
 
 #endif  // CHROME_BROWSER_SYNC_NOTIFIER_CHROME_INVALIDATION_CLIENT_H_