[CSSMQ] Allow integer values for monochrome media feature.

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 68 matching lines @@
 }
 
 static inline bool featureWithPositiveInteger(const AtomicString& mediaFeature, const CSSParserValue* value)
 {
     if (!value->isInt || value->fValue < 0)
         return false;
 
     return mediaFeature == MediaFeatureNames::colorMediaFeature
         || mediaFeature == MediaFeatureNames::max_colorMediaFeature
         || mediaFeature == MediaFeatureNames::min_colorMediaFeature
+        || mediaFeature == MediaFeatureNames::monochromeMediaFeature
         || mediaFeature == MediaFeatureNames::min_monochromeMediaFeature
         || mediaFeature == MediaFeatureNames::max_monochromeMediaFeature;
 }
 
 static inline bool featureWithPositiveNumber(const AtomicString& mediaFeature, const CSSParserValue* value)
 {
     if (value->unit != CSSPrimitiveValue::CSS_NUMBER || value->fValue < 0)
         return false;
 
     return mediaFeature == MediaFeatureNames::transform_2dMediaFeature
@@ skipping 145 matching lines @@
 
 void MediaQueryExp::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS);
     info.addMember(m_mediaFeature, "mediaFeature");
     info.addMember(m_serializationCache, "serializationCache");
     info.addMember(m_value, "value");
 }
 
 } // namespace