Get Media Query parser to handle parens, brackets and braces blocks correctly

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"
 
 namespace WebCore {
 
 enum MediaQueryTokenType {
     IdentToken = 0,
     FunctionToken = 1,
     DelimiterToken = 2,
     NumberToken = 3,
     PercentageToken = 4,
     DimensionToken = 5,
     WhitespaceToken = 6,
     ColonToken = 7,
     SemicolonToken = 8,
     CommaToken = 9,
     LeftParenthesisToken = 10,
     RightParenthesisToken = 11,
-    EOFToken = 12,
-    CommentToken = 13,
+    LeftBracketToken = 12,
+    RightBracketToken = 13,
+    LeftBraceToken = 14,
+    RightBraceToken = 15,
+    EOFToken = 16,
+    CommentToken = 17,
 };
 
 enum NumericValueType {
     IntegerValueType,
     NumberValueType,
 };
 
 class MediaQueryToken {
 public:
     MediaQueryToken(MediaQueryTokenType);
@@ skipping 24 matching lines @@
     UChar m_delimiter; // Could be rolled into m_value?
 
     NumericValueType m_numericValueType;
     double m_numericValue;
     CSSPrimitiveValue::UnitTypes m_unit;
 };
 
 }
 
 #endif // MediaQueryToken_h