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

components/gcm_driver/gcm_client_impl.h

 // Copyright 2014 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 COMPONENTS_GCM_DRIVER_GCM_CLIENT_IMPL_H_
 #define COMPONENTS_GCM_DRIVER_GCM_CLIENT_IMPL_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 33 matching lines @@
 
 namespace net {
 class HttpNetworkSession;
 }  // namespace net
 
 namespace gcm {
 
 class CheckinRequest;
 class ConnectionFactory;
 class GCMClientImplTest;
+enum class GCMMessageStatus;
 
 // Helper class for building GCM internals. Allows tests to inject fake versions
 // as necessary.
 class GCMInternalsBuilder {
  public:
   GCMInternalsBuilder();
   virtual ~GCMInternalsBuilder();
 
   virtual std::unique_ptr<base::Clock> BuildClock();
   virtual std::unique_ptr<MCSClient> BuildMCSClient(
@@ skipping 252 matching lines @@
 
   // Is there any standalone app being registered for GCM?
   bool HasStandaloneRegisteredApp() const;
 
   // Destroys the store when it is not needed.
   void DestroyStoreWhenNotNeeded();
 
   // Reset all cahced values.
   void ResetCache();
 
+  // Send a message to GCM with information about the final status of a
+  // previously received message. This can be run as a result of a callback
+  // being executed from an AppHandler.
+  void SendMessageReceipt(const std::string& message_id,
+                          const std::string& app_id,
+                          GCMMessageStatus status);
+
   // Builder for the GCM internals (mcs client, etc.).
   std::unique_ptr<GCMInternalsBuilder> internals_builder_;
 
   // Recorder that logs GCM activities.
   GCMStatsRecorderImpl recorder_;
 
   // State of the GCM Client Implementation.
   State state_;
 
   GCMClient::Delegate* delegate_;
@@ skipping 65 matching lines @@
 
   // Factory for creating references in callbacks.
   base::WeakPtrFactory<GCMClientImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GCMClientImpl);
 };
 
 }  // namespace gcm
 
 #endif  // COMPONENTS_GCM_DRIVER_GCM_CLIENT_IMPL_H_