Remove grow box rect support, renderer part.

third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp

 /*
  * Copyright (C) 2014 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 851 matching lines @@
 void WebFrameWidgetImpl::willCloseLayerTreeView() {
   if (m_layerTreeView)
     page()->willCloseLayerTreeView(*m_layerTreeView);
 
   setIsAcceleratedCompositingActive(false);
   m_mutator = nullptr;
   m_layerTreeView = nullptr;
   m_layerTreeViewClosed = true;
 }
 
-void WebFrameWidgetImpl::didChangeWindowResizerRect() {
-  if (m_localRoot->frameView())
-    m_localRoot->frameView()->windowResizerRectChanged();
-}
-
 void WebFrameWidgetImpl::didAcquirePointerLock() {
   page()->pointerLockController().didAcquirePointerLock();
 }
 
 void WebFrameWidgetImpl::didNotAcquirePointerLock() {
   page()->pointerLockController().didNotAcquirePointerLock();
 }
 
 void WebFrameWidgetImpl::didLosePointerLock() {
   page()->pointerLockController().didLosePointerLock();
@@ skipping 634 matching lines @@
   return flags;
 }
 
 LocalFrame* WebFrameWidgetImpl::focusedLocalFrameAvailableForIme() const {
   if (!m_imeAcceptEvents)
     return nullptr;
   return focusedLocalFrameInWidget();
 }
 
 }  // namespace blink