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

Source/web/tests/FrameLoaderClientImplTest.cpp

 /*
  * Copyright (C) 2011, 2012 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 55 matching lines @@
 protected:
     virtual void SetUp() override
     {
         ON_CALL(m_webFrameClient, userAgentOverride(_, _)).WillByDefault(Return(WebString()));
 
         FrameTestHelpers::TestWebViewClient webViewClient;
         m_webView = WebView::create(&webViewClient);
         // FIXME: http://crbug.com/363843. This needs to find a better way to
         // not create graphics layers.
         m_webView->settings()->setAcceleratedCompositingEnabled(false);
-        m_mainFrame = WebLocalFrame::create(WebTreeScopeType::Document, &m_webFrameClient);
+        m_mainFrame = WebLocalFrame::create(&m_webFrameClient);
         m_webView->setMainFrame(m_mainFrame);
         m_frameLoaderClientImpl = toFrameLoaderClientImpl(toWebLocalFrameImpl(m_webView->mainFrame())->frame()->loader().client());
     }
 
     virtual void TearDown() override
     {
         m_webView->close();
         m_mainFrame->close();
     }
 
@@ skipping 56 matching lines @@
         EXPECT_CALL(webFrameClient(), createPluginPlaceholder(mainFrame(), _))
             .WillOnce(Return(nullptr));
         OwnPtrWillBeRawPtr<PluginPlaceholder> pluginPlaceholder = frameLoaderClient().createPluginPlaceholder(
             document(), url, paramNames, paramValues, mimeType, loadManually);
         ASSERT_FALSE(pluginPlaceholder);
     }
 }
 
 } // namespace
 } // namespace blink