Revert of Don't setStyle the RenderView every style recalc

Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 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 3357 matching lines @@
     m_isTransparent = isTransparent;
 }
 
 bool WebViewImpl::isTransparent() const
 {
     return m_isTransparent;
 }
 
 void WebViewImpl::setBaseBackgroundColor(WebColor color)
 {
-    layout();
-
     if (m_baseBackgroundColor == color)
         return;
 
     m_baseBackgroundColor = color;
 
     if (m_page->mainFrame())
         m_page->mainFrame()->view()->setBaseBackgroundColor(color);
 
     updateLayerTreeBackgroundColor();
 }
@@ skipping 593 matching lines @@
     const PageScaleConstraints& constraints = m_pageScaleConstraintsSet.pageDefinedConstraints();
 
     if (!mainFrameImpl() || !mainFrameImpl()->frameView())
         return false;
 
     return mainFrameImpl()->frameView()->layoutSize().width() == m_size.width
         || (constraints.minimumScale == constraints.maximumScale && constraints.minimumScale != -1);
 }
 
 } // namespace blink