Use method registration approach for creating events on core and modules.

Source/web/WebDocument.cpp

Index: Source/web/WebDocument.cpp
diff --git a/Source/web/WebDocument.cpp b/Source/web/WebDocument.cpp
index 5224978604ee9be226295892e797f5cd65c71d97..af379a91dfbda173df3bb0c0f350d40337c494a8 100644
--- a/Source/web/WebDocument.cpp
+++ b/Source/web/WebDocument.cpp
@@ -54,7 +54,6 @@
 #include "core/loader/DocumentLoader.h"
 #include "core/rendering/RenderObject.h"
 #include "core/rendering/RenderView.h"
-#include "modules/InitModules.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "public/platform/WebURL.h"
 #include "public/web/WebAXObject.h"
@@ -242,7 +241,7 @@ WebElement WebDocument::fullScreenElement() const
 WebDOMEvent WebDocument::createEvent(const WebString& eventType)
 {
     TrackExceptionState exceptionState;
-    WebDOMEvent event(createEventModules(eventType, exceptionState));
+    WebDOMEvent event(unwrap<Document>()->createEvent(eventType, exceptionState));
     if (exceptionState.hadException())
         return WebDOMEvent();
     return event;