WebKit merge 41660:41709 (WebKit side)....

third_party/WebKit/WebCore/rendering/RenderThemeChromiumWin.cpp

 /*
  * This file is part of the WebKit project.
  *
  * Copyright (C) 2006 Apple Computer, Inc.
  * Copyright (C) 2008, 2009 Google, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 52 matching lines @@
 }
 
 class ThemePainter : public TransparencyWin {
 public:
     ThemePainter(GraphicsContext* context, const IntRect& r)
     {
         TransformMode transformMode = getTransformMode(context->getCTM());
         init(context, getLayerMode(context, transformMode), transformMode, r);
     }
 
+    ~ThemePainter()
+    {
+        composite();
+    }
+
 private:
     static LayerMode getLayerMode(GraphicsContext* context, TransformMode transformMode)
     {
         if (context->platformContext()->isDrawingToImageBuffer())  // Might have transparent background.
             return WhiteLayer;
         else if (canvasHasMultipleLayers(context->platformContext()->canvas()))  // Needs antialiasing help.
             return OpaqueCompositeLayer;
         else  // Nothing interesting.
             return transformMode == KeepTransform ? NoLayer : OpaqueCompositeLayer;
     }
@@ skipping 581 matching lines @@
 // static
 void RenderThemeChromiumWin::setFindInPageMode(bool enable) {
   if (m_findInPageMode == enable)
       return;
 
   m_findInPageMode = enable;
   theme()->platformColorsDidChange();
 }
 
 } // namespace WebCore