Refactor "options" argument to getUserMedia to be a dictionary

Source/modules/mediastream/NavigatorMediaStream.cpp

Index: Source/modules/mediastream/NavigatorMediaStream.cpp
diff --git a/Source/modules/mediastream/NavigatorMediaStream.cpp b/Source/modules/mediastream/NavigatorMediaStream.cpp
index 54fd5c0f5693162c8c2e5cbf9af0eaae1314155a..610ba396bc40ee07775557fb4f41629fd929ea6b 100644
--- a/Source/modules/mediastream/NavigatorMediaStream.cpp
+++ b/Source/modules/mediastream/NavigatorMediaStream.cpp
@@ -34,6 +34,7 @@
 #include "core/frame/UseCounter.h"
 #include "core/page/Page.h"
 #include "modules/mediastream/MediaDevicesRequest.h"
+#include "modules/mediastream/MediaStreamConstraints.h"
 #include "modules/mediastream/NavigatorUserMediaErrorCallback.h"
 #include "modules/mediastream/NavigatorUserMediaSuccessCallback.h"
 #include "modules/mediastream/UserMediaController.h"
@@ -50,7 +51,7 @@ NavigatorMediaStream::~NavigatorMediaStream()
 {
 }
 
-void NavigatorMediaStream::webkitGetUserMedia(Navigator& navigator, const Dictionary& options, NavigatorUserMediaSuccessCallback* successCallback, NavigatorUserMediaErrorCallback* errorCallback, ExceptionState& exceptionState)
+void NavigatorMediaStream::webkitGetUserMedia(Navigator& navigator, const MediaStreamConstraints& options, NavigatorUserMediaSuccessCallback* successCallback, NavigatorUserMediaErrorCallback* errorCallback, ExceptionState& exceptionState)
 {
     if (!successCallback)
         return;