Fix partial painting with render pipeline throttling

third_party/WebKit/Source/core/layout/LayoutPart.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  *           (C) 2000 Stefan Schimanski (1Stein@gmx.de)
  * Copyright (C) 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
  *
  * 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
@@ skipping 337 matching lines @@
         // not need this code.
         if (LayoutView* childLayoutView = childFrameView->layoutView()) {
             PaintInvalidationState childViewPaintInvalidationState(*childLayoutView, paintInvalidationState);
             childFrameView->invalidateTreeIfNeeded(childViewPaintInvalidationState);
         }
     }
 
     LayoutReplaced::invalidatePaintOfSubtreesIfNeeded(paintInvalidationState);
 }
 
-bool LayoutPart::isThrottledFrameView() const
-{
-    if (!widget() || !widget()->isFrameView())
-        return false;
-    const FrameView* frameView = toFrameView(widget());
-    return frameView->shouldThrottleRendering();
 }
-
-}