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

components/gcm_driver/gcm_driver_android.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_DRIVER_ANDROID_H
 #define COMPONENTS_GCM_DRIVER_GCM_DRIVER_ANDROID_H
 
 #include <jni.h>
 
 #include "base/android/scoped_java_ref.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "components/gcm_driver/gcm_driver.h"
+#include "components/gcm_driver/gcm_message_status.h"
 #include "components/gcm_driver/gcm_stats_recorder_android.h"
 
 namespace base {
 class FilePath;
 class SequencedTaskRunner;
 }
 
 namespace gcm {
 
 // GCMDriver implementation for Android, using Android GCM APIs.
@@ skipping 65 matching lines @@
   void UnregisterWithSenderIdImpl(const std::string& app_id,
                                   const std::string& sender_id) override;
   void SendImpl(const std::string& app_id,
                 const std::string& receiver_id,
                 const OutgoingMessage& message) override;
   void RecordDecryptionFailure(const std::string& app_id,
                                GCMEncryptionProvider::DecryptionResult result)
       override;
 
  private:
+  void SendMessageReceipt(const std::string& app_id,
+                          const std::string& message_id,
+                          GCMMessageStatus status);
+
   base::android::ScopedJavaGlobalRef<jobject> java_ref_;
 
   // Callback for GetGCMStatistics.
   GetGCMStatisticsCallback get_gcm_statistics_callback_;
 
   // Recorder that logs GCM activities.
   GCMStatsRecorderAndroid recorder_;
 
   DISALLOW_COPY_AND_ASSIGN(GCMDriverAndroid);
 };
 
 }  // namespace gcm
 
 #endif  // COMPONENTS_GCM_DRIVER_GCM_DRIVER_ANDROID_H