Move recordSelectorStats out of CSSSelectorParser API

Source/core/css/parser/CSSSelectorParser.h

Index: Source/core/css/parser/CSSSelectorParser.h
diff --git a/Source/core/css/parser/CSSSelectorParser.h b/Source/core/css/parser/CSSSelectorParser.h
index 38b16b8bfdaea684bccd40389cfd96b774b7f8b8..0840f25969b3f48acd216b65220a17a2cc68db57 100644
--- a/Source/core/css/parser/CSSSelectorParser.h
+++ b/Source/core/css/parser/CSSSelectorParser.h
@@ -22,9 +22,6 @@ public:
 
     static bool consumeANPlusB(CSSParserTokenRange&, std::pair<int, int>&);
 
-    // FIXME: This shouldn't be in the header once the Bison parser is removed
-    static void recordSelectorStats(const CSSParserContext&, const CSSSelectorList&);
-
 private:
     CSSSelectorParser(const CSSParserContext&, const AtomicString& defaultNamespace, StyleSheetContents*);