Make SystemMonitor report all audio device changes instead of just audio capture.

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 <string.h>
 #include <algorithm>
@@ skipping 2022 matching lines @@
 }
 
 void MediaStreamManager::OnDevicesChanged(
     base::SystemMonitor::DeviceType device_type) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   // NOTE: This method is only called in response to physical audio/video device
   // changes (from the operating system).
 
   MediaStreamType stream_type;
-  if (device_type == base::SystemMonitor::DEVTYPE_AUDIO_CAPTURE) {
+  if (device_type == base::SystemMonitor::DEVTYPE_AUDIO) {
     stream_type = MEDIA_DEVICE_AUDIO_CAPTURE;
   } else if (device_type == base::SystemMonitor::DEVTYPE_VIDEO_CAPTURE) {
     stream_type = MEDIA_DEVICE_VIDEO_CAPTURE;
   } else {
     return;  // Uninteresting device change.
   }
 
   // Always do enumeration even though some enumeration is in progress, because
   // those enumeration commands could be sent before these devices change.
   ++active_enumeration_ref_count_[stream_type];
@@ skipping 131 matching lines @@
       if (device_info.session_id == session_id &&
           device_info.device.type == type) {
         request->SetCapturingLinkSecured(is_secure);
         return;
       }
     }
   }
 }
 
 }  // namespace content