Bug 1250820 - Part 3: Replace notPseudo with negation. r=heycam

notPseudo is easy to be confused with NotPseudo, so using negation would be
better.

MozReview-Commit-ID: BtlS1A5YgD3

--HG--
extra : rebase_source : 9c9233fefd826f3c912ef4b31bf096f2d2c4d693

layout/style/nsCSSParser.cpp

@@ -5993,7 +5993,7 @@ CSSParserImpl::ParsePseudoSelector(int32_t&       aDataMask,
 #ifdef MOZ_XUL
        isTree ||
 #endif
-       CSSPseudoClassType::notPseudo == pseudoClassType ||
+       CSSPseudoClassType::negation == pseudoClassType ||
        nsCSSPseudoClasses::HasStringArg(pseudoClassType) ||
        nsCSSPseudoClasses::HasNthPairArg(pseudoClassType) ||
        nsCSSPseudoClasses::HasSelectorListArg(pseudoClassType))) {
@@ -6013,7 +6013,7 @@ CSSParserImpl::ParsePseudoSelector(int32_t&       aDataMask,
   }
 
   if (!parsingPseudoElement &&
-      CSSPseudoClassType::notPseudo == pseudoClassType) {
+      CSSPseudoClassType::negation == pseudoClassType) {
     if (aIsNegated) { // :not() can't be itself negated
       REPORT_UNEXPECTED_TOKEN(PEPseudoSelDoubleNot);
       UngetToken();

layout/style/nsCSSPseudoClassList.h

@@ -132,7 +132,7 @@ CSS_PSEUDO_CLASS(scope, ":scope", 0, "layout.css.scope-pseudo.enabled")
 
 // :not needs to come at the end of the non-bit pseudo-class list, since
 // it doesn't actually get directly matched on in SelectorMatches.
-CSS_PSEUDO_CLASS(notPseudo, ":not", 0, "")
+CSS_PSEUDO_CLASS(negation, ":not", 0, "")
 
 // :-moz-dir(ltr) and :-moz-dir(rtl) match elements whose resolved
 // directionality in the markup language is ltr or rtl respectively