Remove most of visited link support.

sky/engine/core/animation/animatable/AnimatableValueTestHelper.cpp

 /*
  * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 29 matching lines @@
 }
 
 void PrintTo(const AnimatableClipPathOperation& animValue, ::std::ostream* os)
 {
     *os << "AnimatableClipPathOperation@" << &animValue;
 }
 
 void PrintTo(const AnimatableColor& animColor, ::std::ostream* os)
 {
     *os << "AnimatableColor("
-        << animColor.color().serialized().utf8().data() << ", "
-        << animColor.visitedLinkColor().serialized().utf8().data() << ")";
+        << animColor.color().serialized().utf8().data() << ")";
 }
 
 void PrintTo(const AnimatableImage& animImage, ::std::ostream* os)
 {
     PrintTo(*(animImage.toCSSValue()), os, "AnimatableImage");
 }
 
 void PrintTo(const AnimatableNeutral& animValue, ::std::ostream* os)
 {
     *os << "AnimatableNeutral@" << &animValue;
@@ skipping 90 matching lines @@
         PrintTo(toAnimatableStrokeDasharrayList(animValue), os);
     else if (animValue.isTransform())
         PrintTo(toAnimatableTransform(animValue), os);
     else if (animValue.isUnknown())
         PrintTo(toAnimatableUnknown(animValue), os);
     else
         *os << "Unknown AnimatableValue - update ifelse chain in AnimatableValueTestHelper.h";
 }
 
 } // namespace blink