Apply CSS Animations on color properties to visited and unvisited link computed styles

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 900 matching lines @@
         collector.setSameOriginOnly(!(rulesToInclude & CrossOriginCSSRules));
         matchAuthorRules(element, collector, rulesToInclude & EmptyCSSRules);
     }
 }
 
 // -------------------------------------------------------------------------------------
 // this is mostly boring stuff on how to apply a certain rule to the Computedstyle...
 
 bool StyleResolver::applyAnimatedProperties(StyleResolverState& state, const Element* animatingElement)
 {
+    if (state.style()->insideLink() != NotInsideLink) {
+        state.setApplyPropertyToRegularStyle(true);

[Timothy Loh, 2015/08/25 08:29:28]

ASSERT(state.applyPropertyToRegularStyle())

+        state.setApplyPropertyToVisitedLinkStyle(true);
+    }
+
     Element* element = state.element();
     ASSERT(element);
 
     // The animating element may be this element, or its pseudo element. It is
     // null when calculating the style for a potential pseudo element that has
     // yet to be created.
     ASSERT(animatingElement == element || !animatingElement || animatingElement->parentOrShadowHostElement() == element);
 
     if (!(animatingElement && animatingElement->hasAnimations())
         && !state.style()->transitions() && !state.style()->animations())
@@ skipping 517 matching lines @@
     visitor->trace(m_watchedSelectorsRules);
     visitor->trace(m_treeBoundaryCrossingRules);
     visitor->trace(m_styleResourceLoader);
     visitor->trace(m_styleSharingLists);
     visitor->trace(m_pendingStyleSheets);
     visitor->trace(m_document);
 #endif
 }
 
 } // namespace blink