Replace HTMLAttributeMode with HTMLStandardMode

third_party/WebKit/Source/core/css/parser/CSSParserMode.h

Index: third_party/WebKit/Source/core/css/parser/CSSParserMode.h
diff --git a/third_party/WebKit/Source/core/css/parser/CSSParserMode.h b/third_party/WebKit/Source/core/css/parser/CSSParserMode.h
index 4b8aa1712525053fdea36ce5170c4b3a30f99818..05853f62ec15bd8db06da5524ab95b95bd5dfaa5 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSParserMode.h
+++ b/third_party/WebKit/Source/core/css/parser/CSSParserMode.h
@@ -37,9 +37,6 @@ namespace blink {
 enum CSSParserMode {
   HTMLStandardMode,
   HTMLQuirksMode,
-  // HTML attributes are parsed in quirks mode but also allows internal
-  // properties and values.
-  HTMLAttributeMode,
   // SVG attributes are parsed in quirks mode but rules differ slightly.
   SVGAttributeMode,
   // @viewport/@font-face rules are specially tagged in StylePropertySet so
@@ -52,17 +49,13 @@ enum CSSParserMode {
 };
 
 inline bool isQuirksModeBehavior(CSSParserMode mode) {
-  return mode == HTMLQuirksMode;  // || mode == HTMLAttributeMode;
+  return mode == HTMLQuirksMode;
 }
 
 inline bool isUASheetBehavior(CSSParserMode mode) {
   return mode == UASheetMode;
 }
 
-inline bool isUnitLessLengthParsingEnabledForMode(CSSParserMode mode) {
-  return mode == HTMLAttributeMode || mode == SVGAttributeMode;
-}
-
 inline bool isCSSViewportParsingEnabledForMode(CSSParserMode mode) {
   return mode == CSSViewportRuleMode;
 }