Reland 15721002: Hook up the device selection to the WebAudio live audio

media/audio/audio_output_resampler.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_AUDIO_OUTPUT_RESAMPLER_H_
 #define MEDIA_AUDIO_AUDIO_OUTPUT_RESAMPLER_H_
 
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 22 matching lines @@
 //
 // TODO(dalecurtis): Ideally the low latency path will be as reliable as the
 // high latency path once we have channel mixing and support querying for the
 // hardware's configured bit depth.  Monitor the UMA stats for fallback and
 // remove fallback support once it's stable.  http://crbug.com/148418
 class MEDIA_EXPORT AudioOutputResampler : public AudioOutputDispatcher {
  public:
   AudioOutputResampler(AudioManager* audio_manager,
                        const AudioParameters& input_params,
                        const AudioParameters& output_params,
+                       const std::string& input_device_id,
                        const base::TimeDelta& close_delay);
 
   // AudioOutputDispatcher interface.
   virtual bool OpenStream() OVERRIDE;
   virtual bool StartStream(AudioOutputStream::AudioSourceCallback* callback,
                            AudioOutputProxy* stream_proxy) OVERRIDE;
   virtual void StopStream(AudioOutputProxy* stream_proxy) OVERRIDE;
   virtual void StreamVolumeSet(AudioOutputProxy* stream_proxy,
                                double volume) OVERRIDE;
   virtual void CloseStream(AudioOutputProxy* stream_proxy) OVERRIDE;
@@ skipping 13 matching lines @@
   // on every StartStream() call and destroyed on CloseStream().
   typedef std::map<AudioOutputProxy*, OnMoreDataConverter*> CallbackMap;
   CallbackMap callbacks_;
 
   // Used by AudioOutputDispatcherImpl; kept so we can reinitialize on the fly.
   base::TimeDelta close_delay_;
 
   // AudioParameters used to setup the output stream.
   AudioParameters output_params_;
 
+  // Device ID to be used by the unified IO to open the correct input device.
+  const std::string input_device_id_;
+
   // Whether any streams have been opened through |dispatcher_|, if so we can't
   // fallback on future OpenStream() failures.
   bool streams_opened_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioOutputResampler);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_AUDIO_OUTPUT_RESAMPLER_H_