binding: Removes Document::wrap that must be equivalent to Node::wrap. (2nd try)

third_party/WebKit/Source/bindings/core/v8/WindowProxy.h

Index: third_party/WebKit/Source/bindings/core/v8/WindowProxy.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/WindowProxy.h b/third_party/WebKit/Source/bindings/core/v8/WindowProxy.h
index efcc80b58f8e32f373c696992233feea32de09d0..be291f718a6c2de8cbf9eccbd7e99b79fa3866f7 100644
--- a/third_party/WebKit/Source/bindings/core/v8/WindowProxy.h
+++ b/third_party/WebKit/Source/bindings/core/v8/WindowProxy.h
@@ -44,6 +44,7 @@
 
 namespace blink {
 
+class Document;
 class Frame;
 class HTMLDocument;
 class SecurityOrigin;
@@ -116,12 +117,13 @@ class WindowProxy final : public GarbageCollectedFinalized<WindowProxy> {
   // DOMWindow object.  Also does some more Window-specific initialization.
   bool setupWindowPrototypeChain();
 
+  void checkDocumentWrapper(v8::Local<v8::Object> wrapper, Document*) const;
+
   Member<Frame> m_frame;
   v8::Isolate* m_isolate;
   RefPtr<ScriptState> m_scriptState;
   RefPtr<DOMWrapperWorld> m_world;
   ScopedPersistent<v8::Object> m_globalProxy;
-  ScopedPersistent<v8::Object> m_document;
 };
 
 }  // namespace blink