Delete WorldContextHandle in favor of DOMWrapperWorld

Source/bindings/v8/DOMWrapperWorld.h

Index: Source/bindings/v8/DOMWrapperWorld.h
diff --git a/Source/bindings/v8/DOMWrapperWorld.h b/Source/bindings/v8/DOMWrapperWorld.h
index d503bc8e3a983276e1c50edaccf7033059c54675..ac993f5b7e0fd9fee48314d02a608b5b543c61b9 100644
--- a/Source/bindings/v8/DOMWrapperWorld.h
+++ b/Source/bindings/v8/DOMWrapperWorld.h
@@ -66,8 +66,8 @@ public:
         return static_cast<DOMWrapperWorld*>(context->GetAlignedPointerFromEmbedderData(v8ContextIsolatedWorld));
     }
 
-    // Will return null if there is no DOMWrapperWorld representing the given ScriptExecutionContext.
-    static DOMWrapperWorld* current(ScriptExecutionContext*);
+    // Will return null if there is no DOMWrapperWorld for the current v8::Context
+    static DOMWrapperWorld* current();
 
     // Associates an isolated world (see above for description) with a security
     // origin. XMLHttpRequest instances used in that world will be considered