Remove unused flag MediaQueryExp::isInteger

Source/core/css/MediaQueryExp.cpp

 /*
  * CSS Media Query
  *
  * Copyright (C) 2006 Kimmo Kinnunen <kimmo.t.kinnunen@nokia.com>.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ skipping 224 matching lines @@
                 expValue.id = value->id;
                 expValue.unit = CSSPrimitiveValue::CSS_VALUE_ID;
                 expValue.isID = true;
             } else if (featureWithValidDensity(lowerMediaFeature, value)
                 || featureWithValidPositiveLength(lowerMediaFeature, value)) {
                 // Media features that must have non-negative <density>, ie. dppx, dpi or dpcm,
                 // or Media features that must have non-negative <length> or number value.
                 expValue.value = value->fValue;
                 expValue.unit = (CSSPrimitiveValue::UnitType)value->unit;
                 expValue.isValue = true;
-                expValue.isInteger = value->isInt;
             } else if (featureWithPositiveInteger(lowerMediaFeature, value)
                 || featureWithPositiveNumber(lowerMediaFeature, value)
                 || featureWithZeroOrOne(lowerMediaFeature, value)) {
                 // Media features that must have non-negative integer value,
                 // or media features that must have non-negative number value,
                 // or media features that must have (0|1) value.
                 expValue.value = value->fValue;
                 expValue.unit = CSSPrimitiveValue::CSS_NUMBER;
                 expValue.isValue = true;
-                expValue.isInteger = value->isInt;
             }
 
             isValid = (expValue.isID || expValue.isValue);
 
         } else if (valueList->size() == 3 && featureWithAspectRatio(lowerMediaFeature)) {
             // Create list of values.
             // Currently accepts only <integer>/<integer>.
             // Applicable to device-aspect-ratio and aspec-ratio.
             isValid = true;
             float numeratorValue = 0;
@@ skipping 71 matching lines @@
         output.append("/");
         output.append(printNumber(denominator));
     } else if (isID) {
         output.append(getValueName(id));
     }
 
     return output.toString();
 }
 
 } // namespace