Adding an interface to allow extention of the audio player for CRD and iOS.

remoting/client/plugin/pepper_audio_player.h

 // Copyright (c) 2012 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 REMOTING_CLIENT_PLUGIN_PEPPER_AUDIO_PLAYER_H_
 #define REMOTING_CLIENT_PLUGIN_PEPPER_AUDIO_PLAYER_H_
 
 #include <stdint.h>
 
 #include "base/callback.h"
 #include "base/macros.h"
+#include "base/memory/weak_ptr.h"
 #include "ppapi/cpp/audio.h"
 #include "ppapi/cpp/instance.h"
 #include "remoting/client/audio_player.h"
 #include "remoting/proto/audio.pb.h"
 
 namespace remoting {
 
 class PepperAudioPlayer : public AudioPlayer {
  public:
   explicit PepperAudioPlayer(pp::Instance* instance);
   ~PepperAudioPlayer() override;
 
   uint32_t GetSamplesPerFrame() override;
 
   bool ResetAudioPlayer(AudioPacket::SamplingRate sampling_rate) override;
 
+  base::WeakPtr<PepperAudioPlayer> GetWeakPtr();
+
  private:
   pp::Instance* instance_;
   pp::Audio audio_;
 
   // The count of sample frames per channel in an audio buffer.
   uint32_t samples_per_frame_;
 
+  base::WeakPtrFactory<PepperAudioPlayer> weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(PepperAudioPlayer);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_CLIENT_PLUGIN_PEPPER_AUDIO_PLAYER_H_