Moved element style recalc count and stats to StyleEngine.

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

 /*
  * 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, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 38 matching lines @@
 #include "platform/TraceEvent.h"
 #include "platform/fonts/FontCache.h"
 
 namespace blink {
 
 using namespace HTMLNames;
 
 StyleEngine::StyleEngine(Document& document)
     : m_document(&document)
     , m_isMaster(!document.importsController() || document.importsController()->master() == &document)
-    , m_pendingStylesheets(0)
     , m_documentStyleSheetCollection(DocumentStyleSheetCollection::create(document))
-    , m_documentScopeDirty(true)
-    , m_usesSiblingRules(false)
-    , m_usesFirstLineRules(false)
-    , m_usesWindowInactiveSelector(false)
-    , m_usesRemUnits(false)
-    , m_maxDirectAdjacentSelectors(0)
-    , m_ignorePendingStylesheets(false)
-    , m_didCalculateResolver(false)
     // We don't need to create CSSFontSelector for imported document or
     // HTMLTemplateElement's document, because those documents have no frame.
     , m_fontSelector(document.frame() ? CSSFontSelector::create(&document) : nullptr)
 {
     if (m_fontSelector)
         m_fontSelector->registerForInvalidationCallbacks(this);
 }
 
 StyleEngine::~StyleEngine()
 {
@@ skipping 348 matching lines @@
         m_resolver.clear();
     }
 }
 
 void StyleEngine::clearMasterResolver()
 {
     if (Document* master = this->master())
         master->styleEngine().clearResolver();
 }
 
-unsigned StyleEngine::resolverAccessCount() const
-{
-    return m_resolver ? m_resolver->accessCount() : 0;
-}
-
 void StyleEngine::didDetach()
 {
     clearResolver();
 }
 
 bool StyleEngine::shouldClearResolver() const
 {
     return !m_didCalculateResolver && !haveStylesheetsLoaded();
 }
 
@@ skipping 267 matching lines @@
 void StyleEngine::pseudoStateChangedForElement(CSSSelector::PseudoType pseudoType, Element& element)
 {
     if (shouldSkipInvalidationFor(element))
         return;
 
     InvalidationLists invalidationLists;
     ensureResolver().ensureUpdatedRuleFeatureSet().collectInvalidationSetsForPseudoClass(invalidationLists, element, pseudoType);
     m_styleInvalidator.scheduleInvalidationSetsForElement(invalidationLists, element);
 }
 
+void StyleEngine::setStatsEnabled(bool enabled)
+{
+    if (!enabled) {
+        m_styleResolverStats = nullptr;
+        return;
+    }
+    if (!m_styleResolverStats)
+        m_styleResolverStats = StyleResolverStats::create();
+    else
+        m_styleResolverStats->reset();
+}
+
 DEFINE_TRACE(StyleEngine)
 {
 #if ENABLE(OILPAN)
     visitor->trace(m_document);
     visitor->trace(m_injectedAuthorStyleSheets);
     visitor->trace(m_documentStyleSheetCollection);
     visitor->trace(m_styleSheetCollectionMap);
     visitor->trace(m_resolver);
     visitor->trace(m_styleInvalidator);
     visitor->trace(m_dirtyTreeScopes);
     visitor->trace(m_activeTreeScopes);
     visitor->trace(m_fontSelector);
     visitor->trace(m_textToSheetCache);
     visitor->trace(m_sheetToTextCache);
 #endif
     CSSFontSelectorClient::trace(visitor);
 }
 
 } // namespace blink