Implement animation tainted custom property values

third_party/WebKit/Source/core/css/cssom/CSSUnparsedValue.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/css/cssom/CSSUnparsedValue.h"
 
 #include "core/css/cssom/CSSStyleVariableReferenceValue.h"
 #include "core/css/parser/CSSTokenizer.h"
 #include "wtf/text/StringBuilder.h"
 
@@ skipping 97 matching lines @@
       tokens.append(m_fragments[i].getAsString());
     else if (m_fragments[i].isCSSVariableReferenceValue())
       tokens.append(
           m_fragments[i].getAsCSSVariableReferenceValue()->variable());
     else
       NOTREACHED();
   }
 
   CSSTokenizer::Scope scope(tokens.toString());
 
+  bool isAnimationTainted = false;
   return CSSVariableReferenceValue::create(
-      CSSVariableData::create(scope.tokenRange()));
+      CSSVariableData::create(scope.tokenRange(), isAnimationTainted, true));
 }
 
 }  // namespace blink