Always paint background and shadow separately

third_party/WebKit/Source/core/layout/LayoutBoxModelObject.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 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. 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 1063 matching lines @@
 }
 
 LayoutUnit LayoutBoxModelObject::computedCSSPadding(
     const Length& padding) const {
   LayoutUnit w;
   if (padding.isPercentOrCalc())
     w = containingBlockLogicalWidthForContent();
   return minimumValueForLength(padding, w);
 }
 
-bool LayoutBoxModelObject::boxShadowShouldBeAppliedToBackground(
-    BackgroundBleedAvoidance bleedAvoidance,
-    const InlineFlowBox* inlineFlowBox) const {
-  if (bleedAvoidance != BackgroundBleedNone)
-    return false;
-
-  if (style()->hasAppearance())
-    return false;
-
-  const ShadowList* shadowList = style()->boxShadow();
-  if (!shadowList)
-    return false;
-
-  bool hasOneNormalBoxShadow = false;
-  size_t shadowCount = shadowList->shadows().size();
-  for (size_t i = 0; i < shadowCount; ++i) {
-    const ShadowData& currentShadow = shadowList->shadows()[i];
-    if (currentShadow.style() != Normal)
-      continue;
-
-    if (hasOneNormalBoxShadow)
-      return false;
-    hasOneNormalBoxShadow = true;
-
-    if (currentShadow.spread())
-      return false;
-  }
-
-  if (!hasOneNormalBoxShadow)
-    return false;
-
-  Color backgroundColor = resolveColor(CSSPropertyBackgroundColor);
-  if (backgroundColor.hasAlpha())
-    return false;
-
-  const FillLayer* lastBackgroundLayer = &style()->backgroundLayers();
-  for (const FillLayer* next = lastBackgroundLayer->next(); next;
-       next = lastBackgroundLayer->next())
-    lastBackgroundLayer = next;
-
-  if (lastBackgroundLayer->clip() != BorderFillBox)
-    return false;
-
-  if (lastBackgroundLayer->image() && style()->hasBorderRadius())
-    return false;
-
-  if (inlineFlowBox &&
-      !inlineFlowBox->boxShadowCanBeAppliedToBackground(*lastBackgroundLayer))
-    return false;
-
-  if (hasOverflowClip() &&
-      lastBackgroundLayer->attachment() == LocalBackgroundAttachment)
-    return false;
-
-  return true;
-}
-
 LayoutUnit LayoutBoxModelObject::containingBlockLogicalWidthForContent() const {
   return containingBlock()->availableLogicalWidth();
 }
 
 LayoutBoxModelObject* LayoutBoxModelObject::continuation() const {
   return (!continuationMap) ? nullptr : continuationMap->get(this);
 }
 
 void LayoutBoxModelObject::setContinuation(LayoutBoxModelObject* continuation) {
   if (continuation) {
@@ skipping 242 matching lines @@
   if (rootElementStyle->hasBackground())
     return false;
 
   if (node() != document().firstBodyElement())
     return false;
 
   return true;
 }
 
 }  // namespace blink