add audio-buffer-size command line flag support to the input audio for all the platforms

media/audio/fake_audio_manager.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 MEDIA_AUDIO_FAKE_AUDIO_MANAGER_H_
 #define MEDIA_AUDIO_FAKE_AUDIO_MANAGER_H_
 
 #include <string>
 #include "base/compiler_specific.h"
 #include "media/audio/audio_manager_base.h"
@@ skipping 15 matching lines @@
       const AudioParameters& params) OVERRIDE;
   virtual AudioOutputStream* MakeLowLatencyOutputStream(
       const AudioParameters& params,
       const std::string& device_id) OVERRIDE;
   virtual AudioInputStream* MakeLinearInputStream(const AudioParameters& params,
                                                   const std::string& device_id)
       OVERRIDE;
   virtual AudioInputStream* MakeLowLatencyInputStream(
       const AudioParameters& params,
       const std::string& device_id) OVERRIDE;
-  virtual AudioParameters GetInputStreamParameters(
-      const std::string& device_id) OVERRIDE;
 
  protected:
   virtual ~FakeAudioManager();
 
   virtual AudioParameters GetPreferredOutputStreamParameters(
       const std::string& output_device_id,
       const AudioParameters& input_params) OVERRIDE;
 
+  virtual AudioParameters GetPreferredInputStreamParameters(
+      const std::string& input_device_id,
+      const AudioParameters& input_params) OVERRIDE;
+
+
  private:
   DISALLOW_COPY_AND_ASSIGN(FakeAudioManager);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_FAKE_AUDIO_MANAGER_H_