[Oilpan]: Make StylePropertySet fully garbage collected.

Source/core/css/parser/BisonCSSParser.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 79 matching lines @@
     void parseSheet(StyleSheetContents*, const String&, const TextPosition& startPosition = TextPosition::minimumPosition(), CSSParserObserver* = 0, bool = false);
     PassRefPtrWillBeRawPtr<StyleRuleBase> parseRule(StyleSheetContents*, const String&);
     PassRefPtrWillBeRawPtr<StyleKeyframe> parseKeyframeRule(StyleSheetContents*, const String&);
     bool parseSupportsCondition(const String&);
     static bool parseValue(MutableStylePropertySet*, CSSPropertyID, const String&, bool important, CSSParserMode, StyleSheetContents*);
     static bool parseColor(RGBA32& color, const String&, bool strict = false);
     static bool parseSystemColor(RGBA32& color, const String&);
     static PassRefPtrWillBeRawPtr<CSSValueList> parseFontFaceValue(const AtomicString&);
     static PassRefPtrWillBeRawPtr<CSSValue> parseAnimationTimingFunctionValue(const String&);
     bool parseDeclaration(MutableStylePropertySet*, const String&, CSSParserObserver*, StyleSheetContents* contextStyleSheet);
-    static PassRefPtr<ImmutableStylePropertySet> parseInlineStyleDeclaration(const String&, Element*);
+    static PassRefPtrWillBeRawPtr<ImmutableStylePropertySet> parseInlineStyleDeclaration(const String&, Element*);
     PassRefPtrWillBeRawPtr<MediaQuerySet> parseMediaQueryList(const String&);
     PassOwnPtr<Vector<double> > parseKeyframeKeyList(const String&);
 
     static bool parseValue(MutableStylePropertySet*, CSSPropertyID, const String&, bool important, const Document&);
 
     bool parseValue(CSSPropertyID, bool important);
     void parseSelector(const String&, CSSSelectorList&);
 
     CSSParserSelector* createFloatingSelector();
     CSSParserSelector* createFloatingSelectorWithTagName(const QualifiedName&);
@@ skipping 54 matching lines @@
     CSSParserSelector* rewriteSpecifiersWithNamespaceIfNeeded(CSSParserSelector*);
     CSSParserSelector* rewriteSpecifiers(CSSParserSelector*, CSSParserSelector*);
     CSSParserSelector* rewriteSpecifiersForShadowDistributed(CSSParserSelector* specifiers, CSSParserSelector* distributedPseudoElementSelector);
 
     void invalidBlockHit();
 
     Vector<OwnPtr<CSSParserSelector> >* reusableSelectorVector() { return &m_reusableSelectorVector; }
 
     void clearProperties();
 
-    PassRefPtr<ImmutableStylePropertySet> createStylePropertySet();
+    PassRefPtrWillBeRawPtr<ImmutableStylePropertySet> createStylePropertySet();
 
     CSSParserContext m_context;
 
     bool m_important;
     CSSPropertyID m_id;
     RawPtrWillBeMember<StyleSheetContents> m_styleSheet;
     RefPtrWillBeMember<StyleRuleBase> m_rule;
     RefPtrWillBeMember<StyleKeyframe> m_keyframe;
     RefPtrWillBeMember<MediaQuerySet> m_mediaList;
     OwnPtr<CSSParserValueList> m_valueList;
@@ skipping 77 matching lines @@
     template<unsigned prefixLength, unsigned suffixLength>
     inline void setupParser(const char (&prefix)[prefixLength], const String& string, const char (&suffix)[suffixLength])
     {
         setupParser(prefix, prefixLength - 1, string, suffix, suffixLength - 1);
     }
     void setupParser(const char* prefix, unsigned prefixLength, const String&, const char* suffix, unsigned suffixLength);
 
     void deleteFontFaceOnlyValues();
 
     bool parseValue(MutableStylePropertySet*, CSSPropertyID, const String&, bool important, StyleSheetContents* contextStyleSheet);
-    PassRefPtr<ImmutableStylePropertySet> parseDeclaration(const String&, StyleSheetContents* contextStyleSheet);
+    PassRefPtrWillBeRawPtr<ImmutableStylePropertySet> parseDeclaration(const String&, StyleSheetContents* contextStyleSheet);
 
     bool parseColor(const String&);
 
     const String* m_source;
     TextPosition m_startPosition;
     CSSRuleSourceData::Type m_ruleHeaderType;
     unsigned m_ruleHeaderStartOffset;
     int m_ruleHeaderStartLineNumber;
     OwnPtr<Vector<unsigned> > m_lineEndings;
 
@@ skipping 37 matching lines @@
 inline int cssyylex(void* yylval, BisonCSSParser* parser)
 {
     return parser->m_tokenizer.lex(yylval);
 }
 
 bool isValidNthToken(const CSSParserString&);
 
 } // namespace WebCore
 
 #endif // BisonCSSParser_h