Revert 121000 - [chromium] LayerRendererChromium is not getting visibility messages in single threa…

Source/WebCore/platform/graphics/chromium/cc/CCSingleThreadProxy.cpp

 /*
  * Copyright (C) 2011 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:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 234 matching lines @@
 }
 
 void CCSingleThreadProxy::setNeedsCommit()
 {
     ASSERT(CCProxy::isMainThread());
     m_layerTreeHost->scheduleComposite();
 }
 
 void CCSingleThreadProxy::setNeedsForcedCommit()
 {
-    // Do the commit right here. Simply scheduling a commit won't
-    // work if we're not visible.
-    commitAndComposite();
+    // This proxy doesn't block commits when not visible so use a normal commit.
+    setNeedsCommit();
 }
 
 void CCSingleThreadProxy::setNeedsRedraw()
 {
     // FIXME: Once we move render_widget scheduling into this class, we can
     // treat redraw requests more efficiently than commitAndRedraw requests.
     m_layerTreeHostImpl->setFullRootLayerDamage();
     setNeedsCommit();
 }
 
@@ skipping 108 matching lines @@
 
 void CCSingleThreadProxy::didSwapFrame()
 {
     if (m_nextFrameIsNewlyCommittedFrame) {
         m_nextFrameIsNewlyCommittedFrame = false;
         m_layerTreeHost->didCommitAndDrawFrame();
     }
 }
 
 }