Turn the InspectorHighlight builder into a stack allocated object.

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 2237 matching lines @@
         renderer = renderer->container();
     Node* resultNode = renderer ? renderer->generatingNode() : node->ownerDocument();
     *relayoutBoundaryNodeId = pushNodePathToFrontend(resultNode);
 }
 
 void InspectorDOMAgent::getHighlightObjectForTest(ErrorString* errorString, int nodeId, RefPtr<JSONObject>& result)
 {
     Node* node = assertNode(errorString, nodeId);
     if (!node)
         return;
-    OwnPtrWillBeRawPtr<InspectorHighlight> highlight = InspectorHighlight::create(node, InspectorHighlight::defaultConfig(), true);
-    result = highlight->asJSONObject();
+    InspectorHighlight highlight(node, InspectorHighlight::defaultConfig(), true);
+    result = highlight.asJSONObject();
 }
 
 PassRefPtr<TypeBuilder::Runtime::RemoteObject> InspectorDOMAgent::resolveNode(Node* node, const String& objectGroup)
 {
     Document* document = node->isDocumentNode() ? &node->document() : node->ownerDocument();
     LocalFrame* frame = document ? document->frame() : nullptr;
     if (!frame)
         return nullptr;
 
     InjectedScript injectedScript = m_injectedScriptManager->injectedScriptFor(ScriptState::forMainWorld(frame));
@@ skipping 29 matching lines @@
     visitor->trace(m_searchResults);
 #endif
     visitor->trace(m_hoveredNodeForInspectMode);
     visitor->trace(m_history);
     visitor->trace(m_domEditor);
     visitor->trace(m_listener);
     InspectorBaseAgent::trace(visitor);
 }
 
 } // namespace blink