Remove BackgroundBleedBackgroundOverBorder

Source/core/layout/LayoutBox.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. 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
@@ skipping 1266 matching lines @@
         return false;
     // FIXME: box-shadow is painted while background painting.
     if (style()->boxShadow())
         return false;
     LayoutRect backgroundRect;
     if (!getBackgroundPaintedExtent(backgroundRect))
         return false;
     return foregroundIsKnownToBeOpaqueInRect(backgroundRect, backgroundObscurationTestMaxDepth);
 }
 
-bool LayoutBox::backgroundHasOpaqueTopLayer() const
-{
-    const FillLayer& fillLayer = style()->backgroundLayers();
-    if (fillLayer.clip() != BorderFillBox)
-        return false;
-
-    // Clipped with local scrolling
-    if (hasOverflowClip() && fillLayer.attachment() == LocalBackgroundAttachment)
-        return false;
-
-    if (fillLayer.hasOpaqueImage(this) && fillLayer.hasRepeatXY() && fillLayer.image()->canRender(*this, style()->effectiveZoom()))
-        return true;
-
-    // If there is only one layer and no image, check whether the background color is opaque
-    if (!fillLayer.next() && !fillLayer.hasImage()) {
-        Color bgColor = resolveColor(CSSPropertyBackgroundColor);
-        if (bgColor.alpha() == 255)
-            return true;
-    }
-
-    return false;
-}
-
 void LayoutBox::paintMask(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     BoxPainter(*this).paintMask(paintInfo, paintOffset);
 }
 
 void LayoutBox::imageChanged(WrappedImagePtr image, const IntRect*)
 {
     // TODO(chrishtr): support PaintInvalidationDelayedFull for animated border images.
     if ((style()->borderImage().image() && style()->borderImage().image()->data() == image)
         || (style()->maskBoxImage().image() && style()->maskBoxImage().image()->data() == image)) {
@@ skipping 3451 matching lines @@
 bool LayoutBox::canRenderBorderImage() const
 {
     if (!style()->hasBorderDecoration())
         return false;
 
     StyleImage* borderImage = style()->borderImage().image();
     return borderImage && borderImage->canRender(*this, style()->effectiveZoom()) && borderImage->isLoaded();
 }
 
 } // namespace blink