Refactor "options" argument to getUserMedia to be a dictionary

Source/modules/mediastream/NavigatorMediaStream.h

 /*
     Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 11 matching lines @@
 
 #include "platform/heap/Handle.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class Dictionary;
 class ExceptionState;
 class MediaDeviceInfoCallback;
+class MediaStreamConstraints;
 class Navigator;
 class NavigatorUserMediaErrorCallback;
 class NavigatorUserMediaSuccessCallback;
 
 class NavigatorMediaStream {
 public:
-    static void webkitGetUserMedia(Navigator&, const Dictionary&, NavigatorUserMediaSuccessCallback*, NavigatorUserMediaErrorCallback*, ExceptionState&);
+    static void webkitGetUserMedia(Navigator&, const MediaStreamConstraints&, NavigatorUserMediaSuccessCallback*, NavigatorUserMediaErrorCallback*, ExceptionState&);
 
     static void getMediaDevices(Navigator&, MediaDeviceInfoCallback*, ExceptionState&);
 
 private:
     NavigatorMediaStream();
     ~NavigatorMediaStream();
 };
 
 } // namespace blink
 
 #endif // NavigatorMediaStream_h