Match 'i' attribute selector modifier case-insensitively

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

Index: third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp
diff --git a/third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp b/third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp
index be1b17a26a02cabb1a8b16428e29047761661e2a..9f9aa6ced789ddcaad7861653ce3080cefe9773b 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp
+++ b/third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp
@@ -608,7 +608,7 @@ CSSSelector::AttributeMatchType CSSSelectorParser::consumeAttributeFlags(CSSPars
     if (range.peek().type() != IdentToken)
         return CSSSelector::CaseSensitive;
     const CSSParserToken& flag = range.consumeIncludingWhitespace();
-    if (String(flag.value()) == "i")
+    if (flag.valueEqualsIgnoringCase("i"))
         return CSSSelector::CaseInsensitive;
     m_failedParsing = true;
     return CSSSelector::CaseSensitive;