Schedule animation when setting base background color, rather than forcing an update.

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 388 matching lines @@
 }
 
 void WebFrameWidgetImpl::setBaseBackgroundColor(WebColor color)
 {
     if (m_baseBackgroundColor == color)
         return;
 
     m_baseBackgroundColor = color;
 
     m_localRoot->frameView()->setBaseBackgroundColor(color);
-
-    updateAllLifecyclePhases();
 }
 
 void WebFrameWidgetImpl::scheduleAnimation()
 {
     if (m_layerTreeView) {
         m_layerTreeView->setNeedsBeginFrame();
         return;
     }
     if (m_client)
         m_client->scheduleAnimation();
@@ skipping 1040 matching lines @@
 }
 
 LocalFrame* WebFrameWidgetImpl::focusedLocalFrameAvailableForIme() const
 {
     if (!m_imeAcceptEvents)
         return nullptr;
     return focusedLocalFrameInWidget();
 }
 
 } // namespace blink