Remove grow box rect support, renderer part.

third_party/WebKit/Source/web/WebViewImpl.h

 /*
  * Copyright (C) 2010 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 141 matching lines @@
   bool selectionTextDirection(WebTextDirection& start,
                               WebTextDirection& end) const override;
   bool isSelectionAnchorFirst() const override;
   WebRange caretOrSelectionRange() override;
   void setTextDirection(WebTextDirection) override;
   bool isAcceleratedCompositingActive() const override;
   void willCloseLayerTreeView() override;
   void didAcquirePointerLock() override;
   void didNotAcquirePointerLock() override;
   void didLosePointerLock() override;
-  void didChangeWindowResizerRect() override;
 
   // WebView methods:
   virtual bool isWebView() const { return true; }
   void setMainFrame(WebFrame*) override;
   void setCredentialManagerClient(WebCredentialManagerClient*) override;
   void setPrerendererClient(WebPrerendererClient*) override;
   void setSpellCheckClient(WebSpellCheckClient*) override;
   WebSettings* settings() override;
   WebString pageEncoding() const override;
   bool tabsToLinks() const override;
@@ skipping 605 matching lines @@
   Persistent<ResizeViewportAnchor> m_resizeViewportAnchor;
 };
 
 // We have no ways to check if the specified WebView is an instance of
 // WebViewImpl because WebViewImpl is the only implementation of WebView.
 DEFINE_TYPE_CASTS(WebViewImpl, WebView, webView, true, true);
 
 }  // namespace blink
 
 #endif