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

Source/web/WebSharedWorkerImpl.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 195 matching lines @@
     // Create 'shadow page'. This page is never displayed, it is used to proxy the
     // loading requests from the worker context to the rest of WebKit and Chromium
     // infrastructure.
     ASSERT(!m_webView);
     m_webView = WebView::create(0);
     // FIXME: http://crbug.com/363843. This needs to find a better way to
     // not create graphics layers.
     m_webView->settings()->setAcceleratedCompositingEnabled(false);
     // FIXME: Settings information should be passed to the Worker process from Browser process when the worker
     // is created (similar to RenderThread::OnCreateNewView).
-    m_mainFrame = toWebLocalFrameImpl(WebLocalFrame::create(WebTreeScopeType::Document, this));
+    m_mainFrame = toWebLocalFrameImpl(WebLocalFrame::create(this));
     m_webView->setMainFrame(m_mainFrame);
     m_mainFrame->setDevToolsAgentClient(this);
 
     // If we were asked to pause worker context on start and wait for debugger then it is the good time to do that.
     client()->workerReadyForInspection();
     if (m_pauseWorkerContextOnStart) {
         m_isPausedOnStart = true;
         return;
     }
     loadShadowPage();
@@ skipping 247 matching lines @@
     if (devtoolsAgent)
         devtoolsAgent->dispatchOnInspectorBackend(message);
 }
 
 WebSharedWorker* WebSharedWorker::create(WebSharedWorkerClient* client)
 {
     return new WebSharedWorkerImpl(client);
 }
 
 } // namespace blink