CSS Parser: Implement selector parsing [1/3]

Source/core/css/parser/CSSParserTokenRange.h

Index: Source/core/css/parser/CSSParserTokenRange.h
diff --git a/Source/core/css/parser/CSSParserTokenRange.h b/Source/core/css/parser/CSSParserTokenRange.h
index 3d0f00232a840a989e6a3552e0ee83f9b4ea1b62..0f38f7c0882903848283bbb97652e7c263d677b8 100644
--- a/Source/core/css/parser/CSSParserTokenRange.h
+++ b/Source/core/css/parser/CSSParserTokenRange.h
@@ -43,6 +43,21 @@ public:
         return *m_first++;
     }
 
+    const CSSParserToken& consumeIncludingComments()
+    {
+        const CSSParserToken& result = consume();
+        while (peek().type() == CommentToken)
+            ++m_first;
+        return result;
+    }
+
+    const CSSParserToken& consumeIncludingWhitespaceAndComments()
+    {
+        const CSSParserToken& result = consume();
+        consumeWhitespaceAndComments();
+        return result;
+    }
+
     void consumeComponentValue();
     void consumeWhitespaceAndComments();