Revert 232766 "Refactor MediaStreamManager to never output real ..."

content/browser/renderer_host/media/media_stream_provider.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.
 
 // MediaStreamProvider is used to capture media of the types defined in
 // MediaStreamType. There is only one MediaStreamProvider instance per media
 // type and a MediaStreamProvider instance can have only one registered
 // listener.
 // The MediaStreamManager is expected to be called on Browser::IO thread and
 // the listener will be called on the same thread.
@@ skipping 34 matching lines @@
                       int capture_session_id) = 0;
 
   // Called by a MediaStreamProvider when a stream has been closed.
   virtual void Closed(MediaStreamType stream_type,
                       int capture_session_id) = 0;
 
   // Called by a MediaStreamProvider when available devices has been enumerated.
   virtual void DevicesEnumerated(MediaStreamType stream_type,
                                  const StreamDeviceInfoArray& devices) = 0;
 
+  // Called by a MediaStreamProvider when an error has occured.
+  virtual void Error(MediaStreamType stream_type,
+                     int capture_session_id,
+                     MediaStreamProviderError error) = 0;
+
  protected:
   virtual ~MediaStreamProviderListener() {}
 };
 
 // Implemented by a manager class providing captured media.
 class CONTENT_EXPORT MediaStreamProvider
     : public base::RefCountedThreadSafe<MediaStreamProvider> {
  public:
   // Registers a listener and a device message loop.
   virtual void Register(MediaStreamProviderListener* listener,
@@ skipping 15 matching lines @@
   virtual void Close(int capture_session_id) = 0;
 
  protected:
   friend class base::RefCountedThreadSafe<MediaStreamProvider>;
   virtual ~MediaStreamProvider() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_PROVIDER_H_