Ensures that WebRTC works for device selection using a different sample rate than default

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 <list>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 92 matching lines @@
     if (media_observer == NULL)
       return;
 
     // If we appended a device_id scheme, we want to remove it when notifying
     // observers which may be in different modules since this scheme is only
     // used internally within the content module.
     std::string device_id =
         WebContentsCaptureUtil::StripWebContentsDeviceScheme(
             requested_device_id);
 
+    // TODO(henrika): possibly add new sample rate and channel configuration
+    // here as well.  See AudioInputDeviceManager::EnumerateOnDeviceThread()
+    // for details.
     media_observer->OnMediaRequestStateChanged(
         render_process_id, render_view_id,
         MediaStreamDevice(
             stream_type, device_id, device_id), new_state);
   }
 
   MediaRequestState state(MediaStreamType stream_type) const {
     return state_[stream_type];
   }
 
@@ skipping 969 matching lines @@
   }
 
   // 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];
   GetDeviceManager(stream_type)->EnumerateDevices(stream_type);
 }
 
 }  // namespace content