DevTools: improve TTIE, do not select body before the target element upon inspect element.

Source/core/inspector/InspectorDOMAgent.h

Index: Source/core/inspector/InspectorDOMAgent.h
diff --git a/Source/core/inspector/InspectorDOMAgent.h b/Source/core/inspector/InspectorDOMAgent.h
index 2be492fa474da932c5d3c402eb36f418123ef785..f318df057865b4d39742e898f3926bb193f15747 100644
--- a/Source/core/inspector/InspectorDOMAgent.h
+++ b/Source/core/inspector/InspectorDOMAgent.h
@@ -194,6 +194,7 @@ public:
     Node* nodeForId(int nodeId);
     int boundNodeId(Node*);
     void setDOMListener(DOMListener*);
+    void inspect(Node*);
 
     static String documentURLString(Document*);
 
@@ -237,8 +238,6 @@ private:
     Node* assertEditableChildNode(ErrorString*, Element* parentElement, int nodeId);
     Element* assertEditableElement(ErrorString*, int nodeId);
 
-    void inspect(Node*);
-
     int pushNodePathToFrontend(Node*, NodeToIdMap* nodeMap);
     int pushNodePathToFrontend(Node*);
     void pushChildNodesToFrontend(int nodeId, int depth = 1);
@@ -285,6 +284,7 @@ private:
     OwnPtrWillBeMember<DOMEditor> m_domEditor;
     bool m_suppressAttributeModifiedEvent;
     RawPtrWillBeMember<Listener> m_listener;
+    int m_backendNodeIdToInspect;
 };