Fix performance issue in InstanceCounters for DOM nodes

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  *
@@ skipping 251 matching lines @@
 Node::Node(TreeScope* treeScope, ConstructionType type)
     : m_nodeFlags(type),
       m_parentOrShadowHostNode(nullptr),
       m_treeScope(treeScope),
       m_previous(nullptr),
       m_next(nullptr) {
   DCHECK(m_treeScope || type == CreateDocument || type == CreateShadowRoot);
 #if !defined(NDEBUG) || (defined(DUMP_NODE_STATISTICS) && DUMP_NODE_STATISTICS)
   trackForDebugging();
 #endif
-  InstanceCounters::incrementCounter(InstanceCounters::NodeCounter);
+  InstanceCounters::incrementNodeCounter();
 }
 
 Node::~Node() {
   // With Oilpan, the rare data finalizer also asserts for
   // this condition (we cannot directly access it here.)
   RELEASE_ASSERT(hasRareData() || !layoutObject());
-  InstanceCounters::decrementCounter(InstanceCounters::NodeCounter);
+  InstanceCounters::decrementNodeCounter();
 }
 
 NodeRareData* Node::rareData() const {
   SECURITY_DCHECK(hasRareData());
   return static_cast<NodeRareData*>(m_data.m_rareData);
 }
 
 NodeRareData& Node::ensureRareData() {
   if (hasRareData())
     return *rareData();
@@ skipping 2175 matching lines @@
   if (node) {
     std::stringstream stream;
     node->printNodePathTo(stream);
     LOG(INFO) << stream.str();
   } else {
     LOG(INFO) << "Cannot showNodePath for <null>";
   }
 }
 
 #endif