Implements CSSPropertyAPI for the webkit-highlight property.

third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp

Index: third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp
diff --git a/third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp b/third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp
index 2068dc284007308b82f1d208e0a3d6aec9a2cd81..17d1111e413ff3515c903e49487bc59cd9384401 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp
+++ b/third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp
@@ -344,12 +344,6 @@ static CSSValue* consumeQuotes(CSSParserTokenRange& range) {
   return nullptr;
 }
 
-static CSSValue* consumeWebkitHighlight(CSSParserTokenRange& range) {
-  if (range.peek().id() == CSSValueNone)
-    return consumeIdent(range);
-  return consumeString(range);
-}
-
 class FontVariantLigaturesParser {
   STACK_ALLOCATED();
 
@@ -3039,8 +3033,6 @@ const CSSValue* CSSPropertyParser::parseSingleValue(
   switch (property) {
     case CSSPropertyQuotes:
       return consumeQuotes(m_range);
-    case CSSPropertyWebkitHighlight:
-      return consumeWebkitHighlight(m_range);
     case CSSPropertyFontVariantCaps:
       return consumeFontVariantCaps(m_range);
     case CSSPropertyFontVariantLigatures: