On windows, create PCMWaveInAudioInputStream instance with correct device ID.

media/audio/win/audio_manager_win.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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>
 
 #include "base/basictypes.h"
@@ skipping 43 matching lines @@
 
   // Allow unit test to modify the utilized enumeration API.
   friend class AudioInputDeviceTest;
 
   EnumerationType enumeration_type_;
   EnumerationType enumeration_type() { return enumeration_type_; }
   void SetEnumerationType(EnumerationType type) {
     enumeration_type_ = type;
   }
 
+  // Returns a PCMWaveInAudioInputStream instance or NULL on failure.
+  // This method converts MMDevice-style device ID to WaveIn-style device ID if
+  // necessary.
+  // (Please see device_enumeration_win.h for more info about the two kinds of
+  // device IDs.)
+  AudioInputStream* CreatePCMWaveInAudioInputStream(
+      const AudioParameters& params,
+      const std::string& device_id);
+
   // Number of currently open output streams.
   int num_output_streams_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioManagerWin);
 };
 
 #endif  // MEDIA_AUDIO_WIN_AUDIO_MANAGER_WIN_H_