Refactored out need to use CSSPropertyID to parse counter properties.

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 74aa3fbf21b20bbf860a9e9468f641f10c2c8a53..b35fda0aaa17b11f89f88d6c65c13c11e9eb877e 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp
+++ b/third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp
@@ -1864,9 +1864,9 @@ const CSSValue* CSSPropertyParser::parseSingleValue(
     case CSSPropertyFontWeight:
       return CSSPropertyFontUtils::consumeFontWeight(m_range);
     case CSSPropertyCounterIncrement:
+      return consumeCounter(m_range, 1);

[suzyh_UTC10 (ex-contributor), 2017/03/27 04:29:57]

These magic numbers should be replaced with meaningfully-named constants. Happy
for that to happen in the next step's patch.

     case CSSPropertyCounterReset:
-      return consumeCounter(m_range,
-                            property == CSSPropertyCounterIncrement ? 1 : 0);
+      return consumeCounter(m_range, 0);
     case CSSPropertyMaxWidth:
     case CSSPropertyMaxHeight:
       return CSSPropertyLengthUtils::consumeMaxWidthOrHeight(