Moved MQ parsing block tracking to tokenizer

Source/core/css/parser/MediaQueryToken.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 MediaQueryToken_h
 #define MediaQueryToken_h
 
 #include "core/css/CSSPrimitiveValue.h"
 #include "wtf/text/WTFString.h"
 
@@ skipping 22 matching lines @@
     CommentToken = 18,
 };
 
 enum NumericValueType {
     IntegerValueType,
     NumberValueType,
 };
 
 class MediaQueryToken {
 public:
-    MediaQueryToken(MediaQueryTokenType);
-    MediaQueryToken(MediaQueryTokenType, String);
+    enum BlockType {
+        NotBlock,
+        BlockStart,
+        BlockEnd,
+    };
+
+    MediaQueryToken(MediaQueryTokenType, BlockType = NotBlock);
+    MediaQueryToken(MediaQueryTokenType, String value, BlockType = NotBlock);
 
     MediaQueryToken(MediaQueryTokenType, UChar); // for DelimiterToken
     MediaQueryToken(MediaQueryTokenType, double, NumericValueType); // for NumberToken
 
     // Converts NumberToken to DimensionToken.
     void convertToDimensionWithUnit(String);
 
     // Converts NumberToken to PercentageToken.
     void convertToPercentage();
 
     MediaQueryTokenType type() const { return m_type; }
     String value() const { return m_value; }
     String textForUnitTests() const;
 
     UChar delimiter() const { return m_delimiter; }
     NumericValueType numericValueType() const { return m_numericValueType; }
     double numericValue() const { return m_numericValue; }
     CSSPrimitiveValue::UnitTypes unitType() const { return m_unit; }
+    BlockType blockType() const { return m_blockType; }
 
 private:
     MediaQueryTokenType m_type;
     String m_value;
 
     UChar m_delimiter; // Could be rolled into m_value?
 
     NumericValueType m_numericValueType;
     double m_numericValue;
     CSSPrimitiveValue::UnitTypes m_unit;
+
+    BlockType m_blockType;
 };
 
-}
+} // namespace
 
 #endif // MediaQueryToken_h