Switching MediaStreamsManager from using AudioManager interface to AudioSystem one.

content/browser/renderer_host/media/media_stream_manager.cc

 // 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.
 
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 1253 matching lines @@
       video_capture_thread_.task_runner());
 #else
   video_capture_manager_ = new VideoCaptureManager(
       media::VideoCaptureDeviceFactory::CreateFactory(
           BrowserThread::GetTaskRunnerForThread(BrowserThread::UI)),
       audio_system_->GetTaskRunner());
 #endif
 
   video_capture_manager_->RegisterListener(this);
 
-  media_devices_manager_.reset(new MediaDevicesManager(
-      audio_system_->GetAudioManager(), video_capture_manager_, this));
+  media_devices_manager_.reset(
+      new MediaDevicesManager(audio_system_, video_capture_manager_, this));
 }
 
 void MediaStreamManager::Opened(MediaStreamType stream_type,
                                 int capture_session_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   DVLOG(1) << "Opened({stream_type = " << stream_type <<  "} "
            << "{capture_session_id = " << capture_session_id << "})";
   // Find the request(s) containing this device and mark it as used.
   // It can be used in several requests since the same device can be
   // requested from the same web page.
@@ skipping 482 matching lines @@
     request->ui_proxy->OnStarted(
         base::Bind(&MediaStreamManager::StopMediaStreamFromBrowser,
                    base::Unretained(this), label),
         base::Bind(&MediaStreamManager::OnMediaStreamUIWindowId,
                    base::Unretained(this), request->video_type(),
                    request->devices));
   }
 }
 
 }  // namespace content