Remove grow box rect support, renderer part.

third_party/WebKit/Source/core/page/ChromeClient.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple, Inc. All rights
  * reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 159 matching lines @@
   bool openJavaScriptConfirm(LocalFrame*, const String&);
   bool openJavaScriptPrompt(LocalFrame*,
                             const String& message,
                             const String& defaultValue,
                             String& result);
   virtual void setStatusbarText(const String&) = 0;
   virtual bool tabsToLinks() = 0;
 
   virtual void* webView() const = 0;
 
-  virtual IntRect windowResizerRect(LocalFrame&) const = 0;
-
   // Methods used by HostWindow.
   virtual WebScreenInfo screenInfo() const = 0;
   virtual void setCursor(const Cursor&, LocalFrame* localRoot) = 0;
   // End methods used by HostWindow.
   virtual Cursor lastSetCursorForTesting() const = 0;
 
   // Returns a custom visible content rect if a viewport override is active.
   virtual WTF::Optional<IntRect> visibleContentRectForPainting() const {
     return WTF::nullopt;
   }
@@ skipping 169 matching lines @@
 
   LayoutPoint m_lastToolTipPoint;
   String m_lastToolTipText;
 
   FRIEND_TEST_ALL_PREFIXES(ChromeClientTest, SetToolTipFlood);
 };
 
 }  // namespace blink
 
 #endif  // ChromeClient_h