Add Event::create() that takes EventInitDictionary

Source/core/dom/Fullscreen.cpp

Index: Source/core/dom/Fullscreen.cpp
diff --git a/Source/core/dom/Fullscreen.cpp b/Source/core/dom/Fullscreen.cpp
index ee6554e6b87b3237a027ff02f5929bbe6e8ef357..5e404e2f56227e0a5c8ef04afd33b2ed2e381bba 100644
--- a/Source/core/dom/Fullscreen.cpp
+++ b/Source/core/dom/Fullscreen.cpp
@@ -113,8 +113,8 @@ static bool isPrefixed(const AtomicString& type)
 
 static PassRefPtrWillBeRawPtr<Event> createEvent(const AtomicString& type, EventTarget& target)
 {
-    EventInit initializer;
-    initializer.bubbles = isPrefixed(type);
+    EventInitDictionary initializer;
+    initializer.setBubbles(isPrefixed(type));
     RefPtrWillBeRawPtr<Event> event = Event::create(type, initializer);
     event->setTarget(&target);
     return event;