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

content/browser/renderer_host/media/audio_input_renderer_host.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.
 //
 // AudioInputRendererHost serves audio related requests from audio capturer
 // which lives inside the render process and provide access to audio hardware.
 //
 // Create stream sequence (AudioInputController = AIC):
 //
 // AudioInputHostMsg_CreateStream -> OnCreateStream -> AIC::CreateLowLatency ->
@@ skipping 71 matching lines @@
 
   virtual ~AudioInputRendererHost();
 
   // Methods called on IO thread ----------------------------------------------
 
   // Audio related IPC message handlers.
 
   // Creates an audio input stream with the specified format whose data is
   // consumed by an entity in the render view referenced by |render_view_id|.
   // |session_id| is used to find out which device to be used for the stream.
-  // When it is AudioInputDeviceManager::kFakeOpenSessionId, it uses the the
-  // default device.  Upon success/failure, the peer is notified via the
+  // Upon success/failure, the peer is notified via the
   // NotifyStreamCreated message.
   void OnCreateStream(int stream_id,
                       int render_view_id,
                       int session_id,
                       const AudioInputHostMsg_CreateStream_Config& config);
 
   // Record the audio input stream referenced by |stream_id|.
   void OnRecordStream(int stream_id);
 
   // Close the audio stream referenced by |stream_id|.
@@ skipping 46 matching lines @@
 
   // A map of stream IDs to audio sources.
   AudioEntryMap audio_entries_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioInputRendererHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_INPUT_RENDERER_HOST_H_