blink: Cleanup class forward declarations

third_party/WebKit/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 33 matching lines @@
 #include "public/web/WebViewClient.h"
 #include "web/WebViewImpl.h"
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 #include <memory>
 #include <string>
 
 namespace blink {
 
 class WebFrame;
-class WebFrameWidget;
 class WebLocalFrameImpl;
 class WebRemoteFrameImpl;
 class WebSettings;
 enum class WebCachePolicy;
 
 namespace FrameTestHelpers {
 
 class TestWebFrameClient;
 class TestWebWidgetClient;
 class TestWebViewClient;
@@ skipping 206 matching lines @@
                           WebDOMMessageEvent) override {}
 
  private:
   Persistent<WebRemoteFrameImpl> const m_frame;
 };
 
 }  // namespace FrameTestHelpers
 }  // namespace blink
 
 #endif  // FrameTestHelpers_h