Minimize calls to Node::nodeType() as it is virtual

Source/core/inspector/InspectorDOMAgent.cpp

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 398 matching lines @@
     }
     return toDocument(node);
 }
 
 Element* InspectorDOMAgent::assertElement(ErrorString* errorString, int nodeId)
 {
     Node* node = assertNode(errorString, nodeId);
     if (!node)
         return 0;
 
-    if (node->nodeType() != Node::ELEMENT_NODE) {
+    if (!node->isElementNode()) {
         *errorString = "Node is not an Element";
         return 0;
     }
     return toElement(node);
 }
 
 static ShadowRoot* userAgentShadowRoot(Node* node)
 {
     if (!node || !node->isInShadowTree())
         return 0;
@@ skipping 82 matching lines @@
     }
 
     discardFrontendBindings();
 
     root = buildObjectForNode(m_document.get(), 2, &m_documentNodeToIdMap);
 }
 
 void InspectorDOMAgent::pushChildNodesToFrontend(int nodeId, int depth)
 {
     Node* node = nodeForId(nodeId);
-    if (!node || (node->nodeType() != Node::ELEMENT_NODE && node->nodeType() != Node::DOCUMENT_NODE && node->nodeType() != Node::DOCUMENT_FRAGMENT_NODE))
+    if (!node || (!node->isElementNode() && !node->isDocumentNode() && !node->isDocumentFragment()))
         return;
 
     NodeToIdMap* nodeMap = m_idToNodesMap.get(nodeId);
 
     if (m_childrenRequested.contains(nodeId)) {
         if (depth <= 1)
             return;
 
         depth--;
 
@@ skipping 569 matching lines @@
     }
     return false;
 }
 
 void InspectorDOMAgent::inspect(Node* inspectedNode)
 {
     if (!m_frontend || !inspectedNode)
         return;
 
     Node* node = inspectedNode;
-    while (node && node->nodeType() != Node::ELEMENT_NODE && node->nodeType() != Node::DOCUMENT_NODE && node->nodeType() != Node::DOCUMENT_FRAGMENT_NODE)
+    while (node && !node->isElementNode() && !node->isDocumentNode() && !node->isDocumentFragment())
         node = node->parentOrShadowHostNode();
 
     if (!node)
         return;
 
     int nodeId = pushNodePathToFrontend(node);
     if (nodeId)
         m_frontend->inspectNodeRequested(nodeId);
 }
 
@@ skipping 961 matching lines @@
     if (!m_documentNodeToIdMap.contains(m_document)) {
         RefPtr<TypeBuilder::DOM::Node> root;
         getDocument(errorString, root);
         return errorString->isEmpty();
     }
     return true;
 }
 
 } // namespace WebCore