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

Source/core/frame/LocalFrame.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Simon Hausmann <hausmann@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  *                     2001 George Staikos <staikos@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com>
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 391 matching lines @@
 
 LocalFrame* LocalFrame::localFrameRoot()
 {
     LocalFrame* curFrame = this;
     while (curFrame && curFrame->tree().parent() && curFrame->tree().parent()->isLocalFrame())
         curFrame = toLocalFrame(curFrame->tree().parent());
 
     return curFrame;
 }
 
+bool LocalFrame::inScope(TreeScope* scope) const
+{
+    ASSERT(scope);
+    Document* doc = document();
+    if (!doc)
+        return false;
+    // FIXME: This check is broken in for OOPI.
+    HTMLFrameOwnerElement* owner = doc->ownerElement();
+    if (!owner)
+        return false;
+    return owner->treeScope() == scope;
+}
+
 String LocalFrame::layerTreeAsText(LayerTreeFlags flags) const
 {
     TextStream textStream;
     textStream << localLayerTreeAsText(flags);
 
     for (Frame* child = tree().firstChild(); child; child = child->tree().traverseNext(this)) {
         if (!child->isLocalFrame())
             continue;
         String childLayerTree = toLocalFrame(child)->localLayerTreeAsText(flags);
         if (!childLayerTree.length())
@@ skipping 388 matching lines @@
     , m_textZoomFactor(parentTextZoomFactor(this))
     , m_inViewSourceMode(false)
 {
     if (isLocalRoot())
         m_instrumentingAgents = InstrumentingAgents::create();
     else
         m_instrumentingAgents = localFrameRoot()->m_instrumentingAgents;
 }
 
 } // namespace blink