Provide a mechanism for the GCM driver to send message receipts to GCM.

chrome/browser/services/gcm/fake_gcm_profile_service.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_SERVICES_GCM_FAKE_GCM_PROFILE_SERVICE_H_
 #define CHROME_BROWSER_SERVICES_GCM_FAKE_GCM_PROFILE_SERVICE_H_
 
 #include <list>
 #include <memory>
 #include <vector>
 
 #include "base/macros.h"
+#include "components/gcm_driver/gcm_client.h"
 #include "components/gcm_driver/gcm_driver.h"
 #include "components/gcm_driver/gcm_profile_service.h"
 
 class Profile;
 
 namespace content {
 class BrowserContext;
 }  // namespace content
 
 namespace gcm {
@@ skipping 15 matching lines @@
   void UnregisterFinished(const std::string& app_id);
   void SendFinished(const std::string& app_id,
                     const std::string& receiver_id,
                     const OutgoingMessage& message);
 
   void AddExpectedUnregisterResponse(GCMClient::Result result);
 
   void SetUnregisterCallback(const UnregisterCallback& callback);
 
   void DispatchMessage(const std::string& app_id,
-                       const IncomingMessage& message);
+                       const IncomingMessage& message,
+                       const GCMClient::MessageReceiptCallback& callback);
 
   const OutgoingMessage& last_sent_message() const {
     return last_sent_message_;
   }
 
   const std::string& last_receiver_id() const {
     return last_receiver_id_;
   }
 
   const std::string& last_registered_app_id() const {
@@ skipping 21 matching lines @@
   OutgoingMessage last_sent_message_;
   std::string last_receiver_id_;
   UnregisterCallback unregister_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeGCMProfileService);
 };
 
 }  // namespace gcm
 
 #endif  // CHROME_BROWSER_SERVICES_GCM_FAKE_GCM_PROFILE_SERVICE_H_