[css-ui] Make caret-color animatable

third_party/WebKit/Source/core/style/ComputedStyle.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2011 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
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 2072 matching lines @@
     case CSSPropertyBorderBottomColor:
       result =
           visitedLink ? visitedLinkBorderBottomColor() : borderBottomColor();
       borderStyle = borderBottomStyle();
       break;
     case CSSPropertyCaretColor: {
       StyleAutoColor autoColor =
           visitedLink ? visitedLinkCaretColor() : caretColor();
       // TODO(rego): We may want to adjust the caret color if it's the same than
       // the background to ensure good visibility and contrast.
-      result = autoColor.toStyleColor();
+      result = autoColor.isAutoColor() ? StyleColor::currentColor()
+                                       : autoColor.toStyleColor();
       break;
     }
     case CSSPropertyColor:
       result = visitedLink ? visitedLinkColor() : color();
       break;
     case CSSPropertyOutlineColor:
       result = visitedLink ? visitedLinkOutlineColor() : outlineColor();
       break;
     case CSSPropertyColumnRuleColor:
       result = visitedLink ? visitedLinkColumnRuleColor() : columnRuleColor();
@@ skipping 360 matching lines @@
     if (value < 0)
       fvalue -= 0.5f;
     else
       fvalue += 0.5f;
   }
 
   return roundForImpreciseConversion<int>(fvalue / zoomFactor);
 }
 
 }  // namespace blink