[MediaStream API] Adding MediaStreamTrack::getSourceInfos

public/platform/WebMediaStreamCenter.h

Index: public/platform/WebMediaStreamCenter.h
diff --git a/public/platform/WebMediaStreamCenter.h b/public/platform/WebMediaStreamCenter.h
index 18348a4957be6f8e24a7e762df72420473601da0..8340a4e054dd941699734e4096a2ef5f7779f43d 100644
--- a/public/platform/WebMediaStreamCenter.h
+++ b/public/platform/WebMediaStreamCenter.h
@@ -31,18 +31,21 @@
 #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; };