CSS Parser: Implement selector parsing [1/3]

Source/core/css/parser/CSSParserTokenRange.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CSSParserTokenRange_h
 #define CSSParserTokenRange_h
 
 #include "core/css/parser/CSSParserToken.h"
 #include "wtf/Vector.h"
 
@@ skipping 25 matching lines @@
         return *(m_first + offset);
     }
 
     const CSSParserToken& consume()
     {
         if (m_first == m_last)
             return staticEOFToken;
         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();
 
     static void initStaticEOFToken();
 
 private:
     CSSParserTokenRange(const CSSParserToken* first, const CSSParserToken* last)
     : m_first(first)
     , m_last(last)
     { }
 
     const CSSParserToken* m_first;
     const CSSParserToken* m_last;
 };
 
 } // namespace
 
 #endif // CSSParserTokenRange_h