Initialize WindowProxy for RemoteFrames.

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"
 #include "core/frame/RemoteDOMWindow.h"
 #include "core/frame/RemoteFrameClient.h"
 #include "core/frame/RemoteFrameView.h"
 #include "core/html/HTMLFrameOwnerElement.h"
 #include "platform/weborigin/SecurityPolicy.h"
 
 namespace blink {
 
@@ skipping 23 matching lines @@
     Frame::trace(visitor);
 }
 
 DOMWindow* RemoteFrame::domWindow() const
 {
     return m_domWindow.get();
 }
 
 WindowProxy* RemoteFrame::windowProxy(DOMWrapperWorld& world)
 {
-    return m_windowProxyManager->windowProxy(world);
+    WindowProxy* windowProxy = m_windowProxyManager->windowProxy(world);

[haraken, 2015/02/10 01:10:51]

Shall we add ASSERT(windowProxy) until we allow a null windowProxy?

[dcheng, 2015/02/10 18:57:48]

Done.

+    windowProxy->initializeIfNeeded();
+    return windowProxy;
 }
 
 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);
 }
@@ skipping 40 matching lines @@
         owner->setWidget(view);
     }
 }
 
 RemoteFrameClient* RemoteFrame::remoteFrameClient() const
 {
     return static_cast<RemoteFrameClient*>(client());
 }
 
 } // namespace blink