Bypass audio resampler on XP / non-WASAPI wave out path.

media/audio/win/audio_manager_win.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_WIN_AUDIO_MANAGER_WIN_H_
 #define MEDIA_AUDIO_WIN_AUDIO_MANAGER_WIN_H_
 
 #include <windows.h>
 #include <string>
 
@@ skipping 22 matching lines @@
   // Implementation of AudioManagerBase.
   virtual AudioOutputStream* MakeLinearOutputStream(
       const AudioParameters& params) OVERRIDE;
   virtual AudioOutputStream* MakeLowLatencyOutputStream(
       const AudioParameters& params) 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 GetPreferredLowLatencyOutputStreamParameters(
+      const AudioParameters& input_params) OVERRIDE;
+
  protected:
   virtual ~AudioManagerWin();
 
  private:
   enum EnumerationType {
     kUninitializedEnumeration = 0,
     kMMDeviceEnumeration,
     kWaveEnumeration,
   };
 
@@ skipping 14 matching lines @@
   AudioInputStream* CreatePCMWaveInAudioInputStream(
       const AudioParameters& params,
       const std::string& device_id);
 
   DISALLOW_COPY_AND_ASSIGN(AudioManagerWin);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_WIN_AUDIO_MANAGER_WIN_H_