Delete an assortment of unneeded paint invalidation code.

sky/engine/core/rendering/RenderImage.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011-2012. All rights reserved.
  *
@@ skipping 147 matching lines @@
     }
 
     // The image hasn't changed in size or its style constrains its size, so a paint invalidation will suffice.
     if (everHadLayout() && !selfNeedsLayout()) {
         // The inner content rectangle is calculated during layout, but may need an update now
         // (unless the box has already been scheduled for layout). In order to calculate it, we
         // may need values from the containing block, though, so make sure that we're not too
         // early. It may be that layout hasn't even taken place once yet.
         updateInnerContentRect();
     }
-
-    LayoutRect paintInvalidationRect;
-    if (rect) {
-        // The image changed rect is in source image coordinates,
-        // so map from the bounds of the image to the contentsBox.
-        paintInvalidationRect = enclosingIntRect(mapRect(*rect, FloatRect(FloatPoint(), m_imageResource->imageSize()), contentBoxRect()));
-        // Guard against too-large changed rects.
-        paintInvalidationRect.intersect(contentBoxRect());
-    } else {
-        paintInvalidationRect = contentBoxRect();
-    }
-
-    {
-        // FIXME: We should not be allowing paint invalidations during layout. crbug.com/339584
-        AllowPaintInvalidationScope scoper(frameView());
-        invalidatePaintRectangle(paintInvalidationRect);
-    }
 }
 
 void RenderImage::notifyFinished(Resource* newImage)
 {
     if (!m_imageResource)
         return;
 
     if (documentBeingDestroyed())
         return;
 
@@ skipping 146 matching lines @@
         return;
     }
 }
 
 bool RenderImage::needsPreferredWidthsRecalculation() const
 {
     return RenderReplaced::needsPreferredWidthsRecalculation();
 }
 
 } // namespace blink