Remove all ordering requirements in CSSValueKeywords.in (WIP)

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

Index: third_party/WebKit/Source/core/css/parser/CSSPropertyParserHelpers.cpp
diff --git a/third_party/WebKit/Source/core/css/parser/CSSPropertyParserHelpers.cpp b/third_party/WebKit/Source/core/css/parser/CSSPropertyParserHelpers.cpp
index bc5add7bbd2976607aff81c7cadeb0fe2056f918..2aaabdc236ff801477cdf1133a6b3c2984a4569f 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSPropertyParserHelpers.cpp
+++ b/third_party/WebKit/Source/core/css/parser/CSSPropertyParserHelpers.cpp
@@ -486,14 +486,22 @@ static bool parseHexColor(CSSParserTokenRange& range,
   return true;
 }
 
+static bool isRGBFunctionId(CSSValueID functionId) {
+  return functionId == CSSValueRgb || functionId == CSSValueRgba;
+}
+
+static bool isHSLFunctionId(CSSValueID functionId) {
+  return functionId == CSSValueHsl || functionId == CSSValueHsla;
+}
+
 static bool parseColorFunction(CSSParserTokenRange& range, RGBA32& result) {
   CSSValueID functionId = range.peek().functionId();
-  if (functionId < CSSValueRgb || functionId > CSSValueHsla)
+  if (!isRGBFunctionId(functionId) && !isHSLFunctionId(functionId))
     return false;
   CSSParserTokenRange colorRange = range;
-  if ((functionId <= CSSValueRgba &&
+  if ((isRGBFunctionId(functionId) &&
        !parseRGBParameters(colorRange, result, functionId == CSSValueRgba)) ||
-      (functionId >= CSSValueHsl &&
+      (isHSLFunctionId(functionId) &&
        !parseHSLParameters(colorRange, result, functionId == CSSValueHsla)))
     return false;
   range = colorRange;