[WeakMemoryCache 1a] Make Reference from Inspector to Resource weak, remove removedFromMemoryCache()

third_party/WebKit/Source/core/css/StyleSheetContents.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 123 matching lines @@
     size_t clientSize() const { return m_loadingClients.size() + m_completedClients.size(); }
     bool hasOneClient() { return clientSize() == 1; }
     void clientLoadCompleted(CSSStyleSheet*);
     void clientLoadStarted(CSSStyleSheet*);
 
     bool isMutable() const { return m_isMutable; }
     void setMutable() { m_isMutable = true; }
 
     void removeSheetFromCache(Document*);
 
-    bool isInMemoryCache() const { return m_isInMemoryCache; }
-    void addedToMemoryCache();
-    void removedFromMemoryCache();
+    bool isReferencedFromResource() const { return m_isReferencedFromResource; }

[yhirano, 2016/04/27 11:00:06]

It may be a good idea to add a comment that a StyleSheetContents must not be
shared by multiple resources somewhere.

[hiroshige, 2016/04/28 08:06:33]

Done.

+    void setReferencedFromResource(bool);
 
     void setHasMediaQueries();
     bool hasMediaQueries() const { return m_hasMediaQueries; }
 
     bool didLoadErrorOccur() const { return m_didLoadErrorOccur; }
 
     RuleSet& ruleSet() { ASSERT(m_ruleSet); return *m_ruleSet.get(); }
     RuleSet& ensureRuleSet(const MediaQueryEvaluator&, AddRuleFlags);
     void clearRuleSet();
 
@@ skipping 17 matching lines @@
     HeapVector<Member<StyleRuleImport>> m_importRules;
     HeapVector<Member<StyleRuleNamespace>> m_namespaceRules;
     HeapVector<Member<StyleRuleBase>> m_childRules;
     using PrefixNamespaceURIMap = HashMap<AtomicString, AtomicString>;
     PrefixNamespaceURIMap m_namespaces;
     AtomicString m_defaultNamespace;
 
     bool m_hasSyntacticallyValidCSSHeader : 1;
     bool m_didLoadErrorOccur : 1;
     bool m_isMutable : 1;
-    bool m_isInMemoryCache : 1;
+    bool m_isReferencedFromResource : 1;
     bool m_hasFontFaceRule : 1;
     bool m_hasMediaQueries : 1;
     bool m_hasSingleOwnerDocument : 1;
 
     CSSParserContext m_parserContext;
 
     HeapHashSet<WeakMember<CSSStyleSheet>> m_loadingClients;
     HeapHashSet<WeakMember<CSSStyleSheet>> m_completedClients;
 
     Member<RuleSet> m_ruleSet;
     String m_sourceMapURL;
 };
 
 } // namespace blink
 
 #endif