Move window.close implementation to DOMWindow

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 134 matching lines @@
     RefPtrWillBeRawPtr<RemoteFrameView> view = RemoteFrameView::create(this);
     setView(view);
 
     if (ownerLayoutObject()) {
         HTMLFrameOwnerElement* owner = deprecatedLocalOwner();
         ASSERT(owner);
         owner->setWidget(view);
     }
 }
 
+void RemoteFrame::close()
+{
+    // window.close only makes sense on a top-level frame.
+    if (!tree().parent())
+        remoteFrameClient()->close();
+}
+
 RemoteFrameClient* RemoteFrame::remoteFrameClient() const
 {
     return static_cast<RemoteFrameClient*>(client());
 }
 
 void RemoteFrame::setRemotePlatformLayer(WebLayer* layer)
 {
     if (m_remotePlatformLayer)
         GraphicsLayer::unregisterContentsLayer(m_remotePlatformLayer);
     m_remotePlatformLayer = layer;
     if (m_remotePlatformLayer)
         GraphicsLayer::registerContentsLayer(layer);
 
     ASSERT(owner());
     toHTMLFrameOwnerElement(owner())->setNeedsCompositingUpdate();
     if (LayoutPart* layoutObject = ownerLayoutObject())
         layoutObject->layer()->updateSelfPaintingLayer();
 }
 
 } // namespace blink