Implement a simple version of SelectorQuery.

third_party/WebKit/Source/core/css/SelectorChecker.cpp

Index: third_party/WebKit/Source/core/css/SelectorChecker.cpp
diff --git a/third_party/WebKit/Source/core/css/SelectorChecker.cpp b/third_party/WebKit/Source/core/css/SelectorChecker.cpp
index 1f1f39e7910fa5f18af21bce83bf40ad6f580dd4..133befd340e7ab50f9d0fa0e5b127254d5d91a43 100644
--- a/third_party/WebKit/Source/core/css/SelectorChecker.cpp
+++ b/third_party/WebKit/Source/core/css/SelectorChecker.cpp
@@ -215,18 +215,6 @@ static int nthLastOfTypeIndex(Element& element, const QualifiedName& type)
     return index;
 }
 
-bool SelectorChecker::match(const SelectorCheckingContext& context, MatchResult& result) const
-{
-    ASSERT(context.selector);
-    return matchSelector(context, result) == SelectorMatches;
-}
-
-bool SelectorChecker::match(const SelectorCheckingContext& context) const
-{
-    MatchResult ignoreResult;
-    return match(context, ignoreResult);
-}
-
 // Recursive check of selectors and combinators
 // It can return 4 different values:
 // * SelectorMatches          - the selector matches the element e