Update Blink to use the tree scope info on WebFrame for scoping checks.

Source/web/WebLocalFrameImpl.cpp

 /*
  * Copyright (C) 2009 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 1567 matching lines @@
 WebString WebLocalFrameImpl::layerTreeAsText(bool showDebugInfo) const
 {
     if (!frame())
         return WebString();
 
     return WebString(frame()->layerTreeAsText(showDebugInfo ? LayerTreeIncludesDebugInfo : LayerTreeNormal));
 }
 
 // WebLocalFrameImpl public ---------------------------------------------------------
 
-WebLocalFrame* WebLocalFrame::create(WebFrameClient* client)
-{
-    return WebLocalFrame::create(WebTreeScopeType::Document, client);
-}
-
 WebLocalFrame* WebLocalFrame::create(WebTreeScopeType scope, WebFrameClient* client)
 {
     return WebLocalFrameImpl::create(scope, client);
 }
 
 WebLocalFrameImpl* WebLocalFrameImpl::create(WebTreeScopeType scope, WebFrameClient* client)
 {
     WebLocalFrameImpl* frame = new WebLocalFrameImpl(scope, client);
 #if ENABLE(OILPAN)
     return frame;
@@ skipping 81 matching lines @@
     // during init(). Note that this may dispatch JS events; the frame may be
     // detached after init() returns.
     frame->init();
     return frame;
 }
 
 PassRefPtrWillBeRawPtr<LocalFrame> WebLocalFrameImpl::createChildFrame(const FrameLoadRequest& request,
     const AtomicString& name, HTMLFrameOwnerElement* ownerElement)
 {
     ASSERT(m_client);
-    WebLocalFrameImpl* webframeChild = toWebLocalFrameImpl(m_client->createChildFrame(this, name, static_cast<WebSandboxFlags>(ownerElement->sandboxFlags())));
+    WebTreeScopeType scope = frame()->document() == ownerElement->treeScope()

[dcheng, 2015/05/21 22:50:10]

This is probably the most significant change in this patch, outside of the
FrameTree.cpp changes.

+        ? WebTreeScopeType::Document
+        : WebTreeScopeType::Shadow;
+    WebLocalFrameImpl* webframeChild = toWebLocalFrameImpl(m_client->createChildFrame(this, scope, name, static_cast<WebSandboxFlags>(ownerElement->sandboxFlags())));
     if (!webframeChild)
         return nullptr;
 
     // FIXME: Using subResourceAttributeName as fallback is not a perfect
     // solution. subResourceAttributeName returns just one attribute name. The
     // element might not have the attribute, and there might be other attributes
     // which can identify the element.
     RefPtrWillBeRawPtr<LocalFrame> child = webframeChild->initializeCoreFrame(frame()->host(), ownerElement, name, ownerElement->getAttribute(ownerElement->subResourceAttributeName()));
     // Initializing the core frame may cause the new child to be detached, since
     // it may dispatch a load event in the parent.
@@ skipping 390 matching lines @@
 {
     m_frameWidget = frameWidget;
 }
 
 WebFrameWidgetImpl* WebLocalFrameImpl::frameWidget() const
 {
     return m_frameWidget;
 }
 
 } // namespace blink