Move the CSS Device Adaptation @viewport rule support behind a runtime flag

Source/core/css/CSSParser.h

 /*
  * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 - 2010  Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 386 matching lines @@
     void endInvalidRuleHeader();
     void reportError(const CSSParserLocation&, ErrorType = GeneralError);
     void resumeErrorLogging() { m_ignoreErrors = false; }
 
     inline int lex(void* yylval) { return (this->*m_lexFunc)(yylval); }
 
     int token() { return m_token; }
 
     void tokenToLowerCase(const CSSParserString& token);
 
-#if ENABLE(CSS_DEVICE_ADAPTATION)
     void markViewportRuleBodyStart() { m_inViewport = true; }
     void markViewportRuleBodyEnd() { m_inViewport = false; }
     StyleRuleBase* createViewportRule();
-#endif
 
     PassRefPtr<CSSPrimitiveValue> createPrimitiveNumericValue(CSSParserValue*);
     PassRefPtr<CSSPrimitiveValue> createPrimitiveStringValue(CSSParserValue*);
     PassRefPtr<CSSPrimitiveValue> createPrimitiveVariableNameValue(CSSParserValue*);
 
     static KURL completeURL(const CSSParserContext&, const String& url);
 
     CSSParserLocation currentLocation();
 
 private:
@@ skipping 154 matching lines @@
     int m_lineNumber;
     int m_tokenStartLineNumber;
     int m_lastSelectorLineNumber;
     CSSRuleSourceData::Type m_ruleHeaderType;
     unsigned m_ruleHeaderStartOffset;
     int m_ruleHeaderStartLineNumber;
 
     bool m_allowImportRules;
     bool m_allowNamespaceDeclarations;
 
-#if ENABLE(CSS_DEVICE_ADAPTATION)
     bool parseViewportProperty(CSSPropertyID propId, bool important);
     bool parseViewportShorthand(CSSPropertyID propId, CSSPropertyID first, CSSPropertyID second, bool important);
 
     bool inViewport() const { return m_inViewport; }
     bool m_inViewport;
-#endif
 
     int (CSSParser::*m_lexFunc)(void*);
 
     Vector<RefPtr<StyleRuleBase> > m_parsedRules;
     Vector<RefPtr<StyleKeyframe> > m_parsedKeyframes;
     Vector<RefPtr<MediaQuerySet> > m_parsedMediaQuerySets;
     Vector<OwnPtr<RuleList> > m_parsedRuleLists;
     HashSet<CSSParserSelector*> m_floatingSelectors;
     HashSet<Vector<OwnPtr<CSSParserSelector> >*> m_floatingSelectorVectors;
     HashSet<CSSParserValueList*> m_floatingValueLists;
@@ skipping 136 matching lines @@
 }
 
 inline int cssyylex(void* yylval, CSSParser* parser)
 {
     return parser->lex(yylval);
 }
 
 } // namespace WebCore
 
 #endif // CSSParser_h