Wip - cl for implemening VideoTrackSource::ApplyConstraints(constraints, VideoTrack) and adopt safe…

content/renderer/media/media_stream_source.h

 // Copyright 2014 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_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
@@ skipping 42 matching lines @@
   // JavaScript call to GetUserMedia. F.E a camera or microphone.
   void SetDeviceInfo(const StreamDeviceInfo& device_info);
 
   // Sets a callback that will be triggered when StopSource is called.
   void SetStopCallback(const SourceStoppedCallback& stop_callback);
 
   // Clears the previously-set SourceStoppedCallback so that it will not be run
   // in the future.
   void ResetSourceStoppedCallback();
 
+  // Connects this source to the given |track|, creating the appropriate
+  // implementation of the content::MediaStreamTrack interface, which
+  // becomes associated with and owned by |track|. Returns true if the source
+  // was successfully started.
+  virtual bool ConnectToTrack(const blink::WebMediaStreamTrack& track) = 0; // { return false; }
+
  protected:
   // Called when StopSource is called. It allows derived classes to implement
   // its own Stop method.
   virtual void DoStopSource() = 0;
 
  private:
   StreamDeviceInfo device_info_;
   SourceStoppedCallback stop_callback_;
 
   // In debug builds, check that all methods are being called on the main
   // thread.
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamSource);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_H_