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

media/audio/openbsd/audio_manager_openbsd.h

Index: media/audio/openbsd/audio_manager_openbsd.h
diff --git a/media/audio/openbsd/audio_manager_openbsd.h b/media/audio/openbsd/audio_manager_openbsd.h
index 53b7dfb725f7d1241e6394835026eb554c96e5ce..db30263d18071dbd0e263cfbe1137c3bf1ce86fe 100644
--- a/media/audio/openbsd/audio_manager_openbsd.h
+++ b/media/audio/openbsd/audio_manager_openbsd.h
@@ -19,8 +19,6 @@ class MEDIA_EXPORT AudioManagerOpenBSD : public AudioManagerBase {
   // 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(
@@ -39,6 +37,9 @@ class MEDIA_EXPORT AudioManagerOpenBSD : public AudioManagerBase {
   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.