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

media/audio/openbsd/audio_manager_openbsd.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 MEDIA_AUDIO_OPENBSD_AUDIO_MANAGER_OPENBSD_H_
 #define MEDIA_AUDIO_OPENBSD_AUDIO_MANAGER_OPENBSD_H_
 
 #include <set>
 
 #include "base/compiler_specific.h"
 #include "media/audio/audio_manager_base.h"
 
 namespace media {
 
 class MEDIA_EXPORT AudioManagerOpenBSD : public AudioManagerBase {
  public:
   AudioManagerOpenBSD(AudioLogFactory* audio_log_factory);
 
   // Implementation of AudioManager.
   virtual bool HasAudioOutputDevices() OVERRIDE;
   virtual bool HasAudioInputDevices() OVERRIDE;
-  virtual AudioParameters GetInputStreamParameters(
-      const std::string& device_id) OVERRIDE;
 
   // Implementation of AudioManagerBase.
   virtual AudioOutputStream* MakeLinearOutputStream(
       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;
 
  protected:
   virtual ~AudioManagerOpenBSD();
 
   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:
   // Called by MakeLinearOutputStream and MakeLowLatencyOutputStream.
   AudioOutputStream* MakeOutputStream(const AudioParameters& params);
 
   // Flag to indicate whether the pulse library has been initialized or not.
   bool pulse_library_is_initialized_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioManagerOpenBSD);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_OPENBSD_AUDIO_MANAGER_OPENBSD_H_