Backend for css rule tracking

third_party/WebKit/Source/core/dom/StyleEngine.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 19 matching lines @@
 #ifndef StyleEngine_h
 #define StyleEngine_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "bindings/core/v8/TraceWrapperMember.h"
 #include "core/CoreExport.h"
 #include "core/css/CSSFontSelectorClient.h"
 #include "core/css/invalidation/StyleInvalidator.h"
 #include "core/css/resolver/StyleResolver.h"
 #include "core/css/resolver/StyleResolverStats.h"
+#include "core/css/resolver/StyleRuleUsageTracker.h"

[caseq, 2016/10/27 20:59:55]

forward-declare instead.

[valih, 2016/10/27 21:41:16]

Done.

 #include "core/dom/Document.h"
 #include "core/dom/DocumentOrderedList.h"
 #include "core/dom/DocumentStyleSheetCollection.h"
 #include "core/dom/StyleEngineContext.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Allocator.h"
 #include "wtf/AutoReset.h"
 #include "wtf/ListHashSet.h"
 #include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
@@ skipping 108 matching lines @@
 
   void didRemoveShadowRoot(ShadowRoot*);
   void shadowRootRemovedFromDocument(ShadowRoot*);
   void appendActiveAuthorStyleSheets();
   void addTreeBoundaryCrossingScope(const TreeScope&);
   const DocumentOrderedList& treeBoundaryCrossingScopes() const {
     return m_treeBoundaryCrossingScopes;
   }
   void resetAuthorStyle(TreeScope&);
 
+  void setRuleUsageTracker(Member<StyleRuleUsageTracker>);

[caseq, 2016/10/27 20:59:55]

StyleRuleUsageTracker*, drop Member<>

[valih, 2016/10/27 21:41:16]

Done.

+
   StyleResolver* resolver() const { return m_resolver.get(); }
 
   StyleResolver& ensureResolver() {
     if (!m_resolver) {
       createResolver();
     } else if (m_resolver->hasPendingAuthorStyleSheets()) {
       viewportRulesChanged();
       m_resolver->appendPendingAuthorStyleSheets();
     }
     return *m_resolver.get();
@@ skipping 114 matching lines @@
   // Track the number of currently loading top-level stylesheets needed for
   // layout.  Sheets loaded using the @import directive are not included in this
   // count.  We use this count of pending sheets to detect when we can begin
   // attaching elements and when it is safe to execute scripts.
   int m_pendingScriptBlockingStylesheets = 0;
   int m_pendingRenderBlockingStylesheets = 0;
 
   HeapVector<Member<CSSStyleSheet>> m_injectedAuthorStyleSheets;
   Member<CSSStyleSheet> m_inspectorStyleSheet;
 
+  Member<StyleRuleUsageTracker> m_tracker;
+
   Member<DocumentStyleSheetCollection> m_documentStyleSheetCollection;
 
   typedef HeapHashMap<WeakMember<TreeScope>,
                       Member<ShadowTreeStyleSheetCollection>>
       StyleSheetCollectionMap;
   StyleSheetCollectionMap m_styleSheetCollectionMap;
 
   bool m_documentScopeDirty = true;
   UnorderedTreeScopeSet m_dirtyTreeScopes;
   UnorderedTreeScopeSet m_activeTreeScopes;
@@ skipping 22 matching lines @@
 
   std::unique_ptr<StyleResolverStats> m_styleResolverStats;
   unsigned m_styleForElementCount = 0;
 
   friend class StyleEngineTest;
 };
 
 }  // namespace blink
 
 #endif