Attach a WebLayer to a frame element for out-of-process iframes.

Source/core/html/HTMLFrameOwnerElement.cpp

 /*
  * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 21 matching lines @@
 #include "core/svg/SVGDocument.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "platform/weborigin/SecurityPolicy.h"
 
 namespace WebCore {
 
 HTMLFrameOwnerElement::HTMLFrameOwnerElement(const QualifiedName& tagName, Document& document)
     : HTMLElement(tagName, document)
     , m_contentFrame(0)
     , m_sandboxFlags(SandboxNone)
+    , m_platformLayer(0)
 {
 }
 
 RenderPart* HTMLFrameOwnerElement::renderPart() const
 {
     // HTMLObjectElement and HTMLEmbedElement may return arbitrary renderers
     // when using fallback content.
     if (!renderer() || !renderer()->isRenderPart())
         return 0;
     return toRenderPart(renderer());
@@ skipping 115 matching lines @@
     // FIXME: In this case the Frame will have finished loading before
     // it's being added to the child list. It would be a good idea to
     // create the child first, then invoke the loader separately.
     if (childFrame->loader().state() == FrameStateComplete && !childFrame->loader().policyDocumentLoader())
         childFrame->loader().checkCompleted();
     return true;
 }
 
 
 } // namespace WebCore