Remove unused flag MediaQueryExp::isInteger

Source/core/css/MediaQueryExp.h

 /*
  * CSS Media Query
  *
  * Copyright (C) 2006 Kimmo Kinnunen <kimmo.t.kinnunen@nokia.com>.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
@@ skipping 31 matching lines @@
 struct MediaQueryExpValue {
     CSSValueID id;
     double value;
     CSSPrimitiveValue::UnitType unit;
     unsigned numerator;
     unsigned denominator;
 
     bool isID;
     bool isValue;
     bool isRatio;
-    bool isInteger;
 
     MediaQueryExpValue()
         : id(CSSValueInvalid)
         , value(0)
         , unit(CSSPrimitiveValue::CSS_UNKNOWN)
         , numerator(0)
         , denominator(1)
         , isID(false)
         , isValue(false)
         , isRatio(false)
-        , isInteger(false)
     {
     }
 
     bool isValid() const { return (isID || isValue || isRatio); }
     String cssText() const;
     bool equals(const MediaQueryExpValue& expValue) const
     {
         if (isID)
             return (id == expValue.id);
         if (isValue)
@@ skipping 29 matching lines @@
 private:
     MediaQueryExp(const String&, const MediaQueryExpValue&);
 
     String m_mediaFeature;
     MediaQueryExpValue m_expValue;
 };
 
 } // namespace
 
 #endif