[MediaStream API] Adding MediaStreamTrack::getSourceInfos

public/platform/WebMediaStreamCenter.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebMediaStreamCenter_h
 #define WebMediaStreamCenter_h
 
-#include "WebString.h"
+#include "WebVector.h"
 
 namespace WebKit {
 class WebMediaStream;
 class WebMediaStreamSourcesRequest;
 class WebMediaStreamTrack;
+class WebSourceInfo;
+class WebString;
 
 class WebMediaStreamCenter {
 public:
     virtual ~WebMediaStreamCenter() { }
 
     virtual void queryMediaStreamSources(const WebMediaStreamSourcesRequest&) = 0;
+    virtual bool getSourceInfos(const WebString& url, WebVector<WebSourceInfo>&) { return false; }
     virtual void didEnableMediaStreamTrack(const WebMediaStream&, const WebMediaStreamTrack&) = 0;
     virtual void didDisableMediaStreamTrack(const WebMediaStream&, const WebMediaStreamTrack&) = 0;
     virtual bool didAddMediaStreamTrack(const WebMediaStream&, const WebMediaStreamTrack&) { return false; };
     virtual bool didRemoveMediaStreamTrack(const WebMediaStream&, const WebMediaStreamTrack&) { return false; };
     virtual void didStopLocalMediaStream(const WebMediaStream&) = 0;
     virtual void didCreateMediaStream(WebMediaStream&) = 0;
 };
 
 } // namespace WebKit
 
 #endif // WebMediaStreamCenter_h