Modifies AudioInputCallback::OnData and use media::AudioBus instead of plain byte vector (Relanding)

content/browser/renderer_host/media/audio_input_renderer_host.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.
 //
 // AudioInputRendererHost serves audio related requests from audio capturer
 // which lives inside the render process and provide access to audio hardware.
 //
 // Create stream sequence (AudioInputController = AIC):
 //
 // AudioInputHostMsg_CreateStream -> OnCreateStream -> AIC::CreateLowLatency ->
@@ skipping 99 matching lines @@
   virtual void OnChannelClosing() OVERRIDE;
   virtual void OnDestruct() const OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // AudioInputController::EventHandler implementation.
   virtual void OnCreated(media::AudioInputController* controller) OVERRIDE;
   virtual void OnRecording(media::AudioInputController* controller) OVERRIDE;
   virtual void OnError(media::AudioInputController* controller,
       media::AudioInputController::ErrorCode error_code) OVERRIDE;
   virtual void OnData(media::AudioInputController* controller,
-                      const uint8* data,
-                      uint32 size) OVERRIDE;
+                      const media::AudioBus* data) OVERRIDE;
   virtual void OnLog(media::AudioInputController* controller,
                      const std::string& message) OVERRIDE;
 
  private:
   // TODO(henrika): extend test suite (compare AudioRenderHost)
   friend class BrowserThread;
   friend class TestAudioInputRendererHost;
   friend class base::DeleteHelper<AudioInputRendererHost>;
 
   struct AudioEntry;
@@ skipping 80 matching lines @@
   media::UserInputMonitor* user_input_monitor_;
 
   scoped_ptr<media::AudioLog> audio_log_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioInputRendererHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_INPUT_RENDERER_HOST_H_