Make createWindow (mostly) work with OOPIF

Source/core/frame/RemoteFrame.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/frame/RemoteFrame.h"
 
 #include "bindings/core/v8/WindowProxy.h"
 #include "bindings/core/v8/WindowProxyManager.h"
 #include "core/dom/RemoteSecurityContext.h"
@@ skipping 41 matching lines @@
 }
 
 WindowProxy* RemoteFrame::windowProxy(DOMWrapperWorld& world)
 {
     WindowProxy* windowProxy = m_windowProxyManager->windowProxy(world);
     ASSERT(windowProxy);
     windowProxy->initializeIfNeeded();
     return windowProxy;
 }
 
+Widget* RemoteFrame::widget() const
+{
+    return view();
+}
+
 void RemoteFrame::navigate(Document& originDocument, const KURL& url, bool lockBackForwardList)
 {
     // The process where this frame actually lives won't have sufficient information to determine
     // correct referrer, since it won't have access to the originDocument. Set it now.
     ResourceRequest request(url);
     request.setHTTPReferrer(SecurityPolicy::generateReferrer(originDocument.referrerPolicy(), url, originDocument.outgoingReferrer()));
     remoteFrameClient()->navigate(request, lockBackForwardList);
 }
 
 void RemoteFrame::reload(ReloadPolicy reloadPolicy, ClientRedirectPolicy clientRedirectPolicy)
@@ skipping 82 matching lines @@
     if (m_remotePlatformLayer)
         GraphicsLayer::registerContentsLayer(layer);
 
     ASSERT(owner());
     toHTMLFrameOwnerElement(owner())->setNeedsCompositingUpdate();
     if (LayoutPart* layoutObject = ownerLayoutObject())
         layoutObject->layer()->updateSelfPaintingLayer();
 }
 
 } // namespace blink