Turn the InspectorHighlight builder into a stack allocated object.

Source/core/inspector/InspectorDOMAgent.cpp

Index: Source/core/inspector/InspectorDOMAgent.cpp
diff --git a/Source/core/inspector/InspectorDOMAgent.cpp b/Source/core/inspector/InspectorDOMAgent.cpp
index 6e3664dd3b81b5003fbf44a78c4fef1685c9a93b..5073270cc399c6edb87e5cb07e4cb41fcef59f06 100644
--- a/Source/core/inspector/InspectorDOMAgent.cpp
+++ b/Source/core/inspector/InspectorDOMAgent.cpp
@@ -2255,8 +2255,8 @@ void InspectorDOMAgent::getHighlightObjectForTest(ErrorString* errorString, int
     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)