Clean up forward declarations in Source/web

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 28 matching lines @@
 #include "public/web/WebRemoteFrameClient.h"
 #include "public/web/WebViewClient.h"
 #include "web/WebViewImpl.h"
 #include "wtf/PassOwnPtr.h"
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 #include <string>
 
 namespace blink {
 
-class WebLocalFrameImpl;
-class WebSettings;
-
 namespace FrameTestHelpers {
 
 class TestWebFrameClient;
 
 // Loads a url into the specified WebFrame for testing purposes. Pumps any
 // pending resource requests, as well as waiting for the threaded parser to
 // finish, before returning.
 void loadFrame(WebFrame*, const std::string& url);
 // Same as above, but for WebFrame::loadHTMLString().
 void loadHTMLString(WebFrame*, const std::string& html, const WebURL& baseURL);
@@ skipping 87 matching lines @@
     {
         Settings::setMockScrollbarsEnabled(false);
         RuntimeEnabledFeatures::setOverlayScrollbarsEnabled(false);
     }
 };
 
 } // namespace FrameTestHelpers
 } // namespace blink
 
 #endif // FrameTestHelpers_h