Remove device enumeration, caching and monitoring from MediaStreamManager.

content/public/common/media_stream_request.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 CONTENT_PUBLIC_COMMON_MEDIA_STREAM_REQUEST_H_
 #define CONTENT_PUBLIC_COMMON_MEDIA_STREAM_REQUEST_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 20 matching lines @@
   // Mirroring of a browser tab.
   MEDIA_TAB_AUDIO_CAPTURE,
   MEDIA_TAB_VIDEO_CAPTURE,
 
   // Desktop media sources.
   MEDIA_DESKTOP_VIDEO_CAPTURE,
 
   // Capture system audio (post-mix loopback stream).
   MEDIA_DESKTOP_AUDIO_CAPTURE,
 
-  // This is used for enumerating audio output devices.
-  // TODO(grunell): Output isn't really a part of media streams. Device
-  // enumeration should be decoupled from media streams and related code.
+  // TODO(guidou): This is used for device enumerations, but it is not a
+  // media stream type. Remove when handling of renderer-generated enumeration
+  // requests is removed from MediaStreamManager. See http://crbug.com/648183.
   MEDIA_DEVICE_AUDIO_OUTPUT,
 
   NUM_MEDIA_TYPES
 };
 
 // Types of media stream requests that can be made to the media controller.
 enum MediaStreamRequestType {
   MEDIA_DEVICE_ACCESS = 0,
   MEDIA_GENERATE_STREAM,
   MEDIA_ENUMERATE_DEVICES,
@@ skipping 221 matching lines @@
 
 // Callback used return results of media access requests.
 typedef base::Callback<void(const MediaStreamDevices& devices,
                             content::MediaStreamRequestResult result,
                             std::unique_ptr<MediaStreamUI> ui)>
     MediaResponseCallback;
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_MEDIA_STREAM_REQUEST_H_