Moved element style recalc count and stats to StyleEngine.

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)
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
@@ skipping 14 matching lines @@
  *
  */
 
 #ifndef StyleEngine_h
 #define StyleEngine_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/dom/Document.h"
 #include "core/dom/DocumentOrderedList.h"
 #include "core/dom/DocumentStyleSheetCollection.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Allocator.h"
 #include "wtf/ListHashSet.h"
 #include "wtf/RefPtr.h"
 #include "wtf/TemporaryChange.h"
 #include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
@@ skipping 109 matching lines @@
     void setFontSelector(PassRefPtrWillBeRawPtr<CSSFontSelector>);
 
     void removeFontFaceRules(const WillBeHeapVector<RawPtrWillBeMember<const StyleRuleFontFace>>&);
     void clearFontCache();
     // updateGenericFontFamilySettings is used from WebSettingsImpl.
     void updateGenericFontFamilySettings();
 
     void didDetach();
     bool shouldClearResolver() const;
     void resolverChanged(StyleResolverUpdateMode);
-    unsigned resolverAccessCount() const;
 
     void markDocumentDirty();
 
     PassRefPtrWillBeRawPtr<CSSStyleSheet> createSheet(Element*, const String& text, TextPosition startPosition);
     void removeSheet(StyleSheetContents*);
 
     void collectScopedStyleFeaturesTo(RuleFeatureSet&) const;
 
     void platformColorsChanged();
 
     void classChangedForElement(const SpaceSplitString& changedClasses, Element&);
     void classChangedForElement(const SpaceSplitString& oldClasses, const SpaceSplitString& newClasses, Element&);
     void attributeChangedForElement(const QualifiedName& attributeName, Element&);
     void idChangedForElement(const AtomicString& oldId, const AtomicString& newId, Element&);
     void pseudoStateChangedForElement(CSSSelector::PseudoType, Element&);
 
+    unsigned styleForElementCount() const { return m_styleForElementCount; }
+    void incStyleForElementCount() { m_styleForElementCount++; }
+
+    StyleResolverStats* stats() { return m_styleResolverStats.get(); }
+    void setStatsEnabled(bool);
+
     DECLARE_VIRTUAL_TRACE();
 
 private:
     // CSSFontSelectorClient implementation.
     void fontsNeedUpdate(CSSFontSelector*) override;
 
 private:
     StyleEngine(Document&);
 
     TreeScopeStyleSheetCollection* ensureStyleSheetCollectionFor(TreeScope&);
@@ skipping 29 matching lines @@
 
     bool shouldSkipInvalidationFor(const Element&) const;
 
     RawPtrWillBeMember<Document> m_document;
     bool m_isMaster;
 
     // 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_pendingStylesheets;
+    int m_pendingStylesheets = 0;
 
     WillBeHeapVector<RefPtrWillBeMember<CSSStyleSheet>> m_injectedAuthorStyleSheets;
 
     OwnPtrWillBeMember<DocumentStyleSheetCollection> m_documentStyleSheetCollection;
 
     typedef WillBeHeapHashMap<RawPtrWillBeWeakMember<TreeScope>, OwnPtrWillBeMember<ShadowTreeStyleSheetCollection>> StyleSheetCollectionMap;
     StyleSheetCollectionMap m_styleSheetCollectionMap;
 
-    bool m_documentScopeDirty;
+    bool m_documentScopeDirty = true;
     UnorderedTreeScopeSet m_dirtyTreeScopes;
     UnorderedTreeScopeSet m_activeTreeScopes;
 
     String m_preferredStylesheetSetName;
     String m_selectedStylesheetSetName;
 
-    bool m_usesSiblingRules;
-    bool m_usesFirstLineRules;
-    bool m_usesWindowInactiveSelector;
-    bool m_usesRemUnits;
-    unsigned m_maxDirectAdjacentSelectors;
+    bool m_usesSiblingRules = false;
+    bool m_usesFirstLineRules = false;
+    bool m_usesWindowInactiveSelector = false;
+    bool m_usesRemUnits = false;
+    unsigned m_maxDirectAdjacentSelectors = 0;
 
-    bool m_ignorePendingStylesheets;
-    bool m_didCalculateResolver;
+    bool m_ignorePendingStylesheets = false;
+    bool m_didCalculateResolver = false;
     OwnPtrWillBeMember<StyleResolver> m_resolver;
     StyleInvalidator m_styleInvalidator;
 
     RefPtrWillBeMember<CSSFontSelector> m_fontSelector;
 
     WillBeHeapHashMap<AtomicString, RawPtrWillBeMember<StyleSheetContents>> m_textToSheetCache;
     WillBeHeapHashMap<RawPtrWillBeMember<StyleSheetContents>, AtomicString> m_sheetToTextCache;
+
+    OwnPtr<StyleResolverStats> m_styleResolverStats;
+    unsigned m_styleForElementCount = 0;
 };
 
 } // namespace blink
 
 #endif