Add consumeInteger/consumeLength

Source/core/css/parser/CSSPropertyParser.h

Index: Source/core/css/parser/CSSPropertyParser.h
diff --git a/Source/core/css/parser/CSSPropertyParser.h b/Source/core/css/parser/CSSPropertyParser.h
index a02331978e9847a281331ffbe9c993ca961a049f..adcf968ae8c88669ef4cb4e239ed19a03ab9a276 100644
--- a/Source/core/css/parser/CSSPropertyParser.h
+++ b/Source/core/css/parser/CSSPropertyParser.h
@@ -189,6 +189,8 @@ private:
     bool parseSystemFont(bool important);
     PassRefPtrWillBeRawPtr<CSSValueList> parseFontFamily();
 
+    PassRefPtrWillBeRawPtr<CSSValue> consumeSpacing(CSSParserTokenRange&);
+
     PassRefPtrWillBeRawPtr<CSSValue> parseCounter(int defaultValue);
     PassRefPtrWillBeRawPtr<CSSValue> parseCounterContent(CSSParserValueList* args, bool counters);
 
@@ -341,8 +343,6 @@ private:
 
     bool validCalculationUnit(CSSParserValue*, Units, ReleaseParsedCalcValueCondition releaseCalc = DoNotReleaseParsedCalcValue);
 
-    bool shouldAcceptUnitLessValues(CSSParserValue*, Units, CSSParserMode);
-
     inline bool validUnit(CSSParserValue* value, Units unitflags, ReleaseParsedCalcValueCondition releaseCalc = DoNotReleaseParsedCalcValue) { return validUnit(value, unitflags, m_context.mode(), releaseCalc); }
     bool validUnit(CSSParserValue*, Units, CSSParserMode, ReleaseParsedCalcValueCondition releaseCalc = DoNotReleaseParsedCalcValue);
 
@@ -378,6 +378,15 @@ private:
     RefPtrWillBeMember<CSSCalcValue> m_parsedCalculation;
 };
 
+inline bool shouldAcceptUnitLessValues(double fValue, CSSPropertyParser::Units unitflags, CSSParserMode cssParserMode)
+{
+    // Quirks mode for certain properties and presentation attributes accept unit-less values for certain units.
+    return (unitflags & (CSSPropertyParser::FLength | CSSPropertyParser::FAngle))
+        && (!fValue // 0 can always be unitless.
+            || isUnitLessLengthParsingEnabledForMode(cssParserMode) // HTML and SVG attribute values can always be unitless.
+            || (cssParserMode == HTMLQuirksMode && (unitflags & CSSPropertyParser::FUnitlessQuirk)));
+}
+
 CSSPropertyID unresolvedCSSPropertyID(const CSSParserString&);
 CSSValueID cssValueKeywordID(const CSSParserString&);