Only compare unvisited background color for LayoutTheme adjustment

Source/core/css/resolver/StyleResolver.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 474 matching lines @@
     // so that the common case doesn't need to create a new LayoutStyle in
     // Document::inheritHtmlAndBodyElementStyles.
     documentStyle->setDisplay(BLOCK);
     documentStyle->setScrollBlocksOn(WebScrollBlocksOnStartTouch | WebScrollBlocksOnWheelEvent);
 
     document.setupFontBuilder(*documentStyle);
 
     return documentStyle.release();
 }
 
-static AuthorStyleInfo authorStyleInfo(StyleResolverState& state)
+AuthorStyleInfo StyleResolver::authorStyleInfo(StyleResolverState& state)
 {
     const CachedUAStyle* cachedUAStyle = state.cachedUAStyle();
 
     if (!cachedUAStyle)
         return AuthorStyleInfo();
 
     // Exclude background-repeat from comparison by resetting it.
     FillLayer backgroundCopy = cachedUAStyle->backgroundLayers;
     FillLayer backgroundLayersCopy = state.style()->backgroundLayers();
     backgroundCopy.setRepeatX(NoRepeatFill);
     backgroundCopy.setRepeatY(NoRepeatFill);
     backgroundLayersCopy.setRepeatX(NoRepeatFill);
     backgroundLayersCopy.setRepeatY(NoRepeatFill);
 
     bool backgroundChanged = backgroundLayersCopy != backgroundCopy
-        || state.style()->visitedDependentColor(CSSPropertyBackgroundColor) != cachedUAStyle->backgroundColor;
+        || state.style()->backgroundColor() != cachedUAStyle->backgroundColor;
     bool borderChanged = state.style()->border() != cachedUAStyle->border;
 
     return AuthorStyleInfo(backgroundChanged, borderChanged);
 }
 
 void StyleResolver::adjustLayoutStyle(StyleResolverState& state, Element* element)
 {
     StyleAdjuster adjuster(document().inQuirksMode());
     adjuster.adjustLayoutStyle(state.mutableStyleRef(), *state.parentStyle(), element, authorStyleInfo(state));
 }
@@ skipping 991 matching lines @@
     visitor->trace(m_uncommonAttributeRuleSet);
     visitor->trace(m_watchedSelectorsRules);
     visitor->trace(m_treeBoundaryCrossingRules);
     visitor->trace(m_styleSharingLists);
     visitor->trace(m_pendingStyleSheets);
     visitor->trace(m_document);
 #endif
 }
 
 } // namespace blink