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

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

Index: third_party/WebKit/Source/core/css/StyleSheetContents.h
diff --git a/third_party/WebKit/Source/core/css/StyleSheetContents.h b/third_party/WebKit/Source/core/css/StyleSheetContents.h
index 1a12b8a2d5a1104cbad97bb81fe573014cc7bd9b..34f0ff24bce559417bd5f8b2a665f5c4d255e4e5 100644
--- a/third_party/WebKit/Source/core/css/StyleSheetContents.h
+++ b/third_party/WebKit/Source/core/css/StyleSheetContents.h
@@ -141,9 +141,8 @@ public:
 
     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; }
@@ -181,7 +180,7 @@ private:
     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;