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

Source/web/tests/FrameTestHelpers.h

 /*
  * Copyright (C) 2011 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 80 matching lines @@
 private:
     WebViewImpl* m_webView;
 };
 
 // Minimal implementation of WebFrameClient needed for unit tests that load frames. Tests that load
 // frames and need further specialization of WebFrameClient behavior should subclass this.
 class TestWebFrameClient : public WebFrameClient {
 public:
     TestWebFrameClient();
 
-    virtual WebFrame* createChildFrame(WebLocalFrame* parent, WebTreeScopeType, const WebString& frameName, WebSandboxFlags) override;
+    virtual WebFrame* createChildFrame(WebLocalFrame* parent, const WebString& frameName, WebSandboxFlags) override;
     virtual void frameDetached(WebFrame*) override;
     virtual void didStartLoading(bool) override;
     virtual void didStopLoading() override;
 
     bool isLoading() { return m_loadsInProgress > 0; }
     void waitForLoadToComplete();
 
 private:
     int m_loadsInProgress;
 };
@@ skipping 41 matching lines @@
     {
         Settings::setMockScrollbarsEnabled(false);
         RuntimeEnabledFeatures::setOverlayScrollbarsEnabled(false);
     }
 };
 
 } // namespace FrameTestHelpers
 } // namespace blink
 
 #endif // FrameTestHelpers_h