Link things together and enable the device selection for linux and mac.

media/audio/linux/audio_manager_linux.h

 // Copyright (c) 2011 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_LINUX_AUDIO_MANAGER_LINUX_H_
 #define MEDIA_AUDIO_LINUX_AUDIO_MANAGER_LINUX_H_
 
 #include <set>
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/threading/thread.h"
 #include "media/audio/audio_manager_base.h"
 
 class AlsaWrapper;
 
 class MEDIA_EXPORT AudioManagerLinux : public AudioManagerBase {
  public:
   AudioManagerLinux();
 
   // Call before using a newly created AudioManagerLinux instance.
   virtual void Init() OVERRIDE;
 
   // Implementation of AudioManager.
   virtual bool HasAudioOutputDevices() OVERRIDE;
   virtual bool HasAudioInputDevices() OVERRIDE;
   virtual AudioOutputStream* MakeAudioOutputStream(
       const AudioParameters& params) OVERRIDE;
-  virtual AudioInputStream* MakeAudioInputStream(const AudioParameters& params)
-      OVERRIDE;
+  virtual AudioInputStream* MakeAudioInputStream(
+      const AudioParameters& params, const std::string& device_id) OVERRIDE;
   virtual bool CanShowAudioInputSettings() OVERRIDE;
   virtual void ShowAudioInputSettings() OVERRIDE;
   virtual void GetAudioInputDeviceNames(media::AudioDeviceNames* device_names)
       OVERRIDE;
 
   virtual void MuteAll() OVERRIDE;
   virtual void UnMuteAll() OVERRIDE;
 
   virtual void ReleaseOutputStream(AudioOutputStream* stream);
 
@@ skipping 19 matching lines @@
   bool HasAnyAlsaAudioDevice(StreamType stream);
 
   scoped_ptr<AlsaWrapper> wrapper_;
 
   std::set<AudioOutputStream*> active_streams_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioManagerLinux);
 };
 
 #endif  // MEDIA_AUDIO_LINUX_AUDIO_MANAGER_LINUX_H_