Use v8::Context::NewRemoteContext in RemoteWindowProxy.

third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.cpp

 /*
  * Copyright (C) 2008, 2009, 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 202 matching lines @@
   v8::Local<v8::Object> globalProxy = context->Global();
   CHECK(m_globalProxy == globalProxy);
   V8DOMWrapper::setNativeInfo(isolate(), globalProxy, wrapperTypeInfo, window);
   // Mark the handle to be traced by Oilpan, since the global proxy has a
   // reference to the DOMWindow.
   m_globalProxy.get().SetWrapperClassId(wrapperTypeInfo->wrapperClassId);
 
   // The global object, aka window wrapper object.
   v8::Local<v8::Object> windowWrapper =
       globalProxy->GetPrototype().As<v8::Object>();
-  windowWrapper = V8DOMWrapper::associateObjectWithWrapper(
-      isolate(), window, wrapperTypeInfo, windowWrapper);
+  v8::Local<v8::Object> associatedWrapper =
+      associateWithWrapper(window, wrapperTypeInfo, windowWrapper);
+  DCHECK(associatedWrapper == windowWrapper);
 
   // The prototype object of Window interface.
   v8::Local<v8::Object> windowPrototype =
       windowWrapper->GetPrototype().As<v8::Object>();
   CHECK(!windowPrototype.IsEmpty());
   V8DOMWrapper::setNativeInfo(isolate(), windowPrototype, wrapperTypeInfo,
                               window);
 
   // The named properties object of Window interface.
   v8::Local<v8::Object> windowProperties =
@@ skipping 202 matching lines @@
 
   setSecurityToken(origin);
 }
 
 LocalWindowProxy::LocalWindowProxy(v8::Isolate* isolate,
                                    LocalFrame& frame,
                                    RefPtr<DOMWrapperWorld> world)
     : WindowProxy(isolate, frame, std::move(world)) {}
 
 }  // namespace blink