Turn the InspectorHighlight builder into a stack allocated object.

Source/core/inspector/InspectorHighlight.h

Index: Source/core/inspector/InspectorHighlight.h
diff --git a/Source/core/inspector/InspectorHighlight.h b/Source/core/inspector/InspectorHighlight.h
index 982e3b2db9d31b29798e0e2610b87f6a0b5551bf..e6fa60ca5f2349cec05a1d6d261ba00f79ec09f7 100644
--- a/Source/core/inspector/InspectorHighlight.h
+++ b/Source/core/inspector/InspectorHighlight.h
@@ -33,16 +33,13 @@ public:
     bool showExtensionLines;
 };
 
-class InspectorHighlight : public NoBaseWillBeGarbageCollectedFinalized<InspectorHighlight> {
+class InspectorHighlight {
+    STACK_ALLOCATED();
 public:
+    InspectorHighlight(Node*, const InspectorHighlightConfig&, bool appendElementInfo);
+    InspectorHighlight();
     ~InspectorHighlight();
 
-    static PassOwnPtrWillBeRawPtr<InspectorHighlight> create(Node*, const InspectorHighlightConfig&, bool appendElementInfo);
-    static PassOwnPtrWillBeRawPtr<InspectorHighlight> create()
-    {
-        return adoptPtrWillBeNoop(new InspectorHighlight());
-    }
-
     static bool getBoxModel(Node*, RefPtr<TypeBuilder::DOM::BoxModel>&);
     static InspectorHighlightConfig defaultConfig();
 
@@ -51,18 +48,16 @@ public:
     void appendEventTargetQuads(Node* eventTargetNode, const InspectorHighlightConfig&);
     PassRefPtr<JSONObject> asJSONObject() const;
 
-    DEFINE_INLINE_TRACE() { }
-
 private:
-    InspectorHighlight();
+    void appendNodeHighlight(Node*, const InspectorHighlightConfig&);
+    void appendPathsForShapeOutside(Node*, const InspectorHighlightConfig&);
 
-    bool m_showRulers;
-    bool m_showExtensionLines;
     RefPtr<JSONObject> m_elementInfo;
     RefPtr<JSONArray> m_highlightPaths;
+    bool m_showRulers;
+    bool m_showExtensionLines;
 };
 
 } // namespace blink
 
-
 #endif // InspectorHighlight_h