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

Source/core/inspector/InspectorController.cpp

Index: Source/core/inspector/InspectorController.cpp
diff --git a/Source/core/inspector/InspectorController.cpp b/Source/core/inspector/InspectorController.cpp
index 464f490385af43ccd8a47b694e1b83dc5c5d44a2..ad0356db9329c6c469a76b17661b70d0139b59e1 100644
--- a/Source/core/inspector/InspectorController.cpp
+++ b/Source/core/inspector/InspectorController.cpp
@@ -320,22 +320,7 @@ void InspectorController::drawHighlight(GraphicsContext& context) const
 
 void InspectorController::inspect(Node* node)
 {
-    if (!node)
-        return;
-    Document* document = node->ownerDocument();
-    if (!document)
-        return;
-    LocalFrame* frame = document->frame();
-    if (!frame)
-        return;
-
-    if (!node->isElementNode() && !node->isDocumentNode())
-        node = node->parentNode();
-
-    InjectedScript injectedScript = m_injectedScriptManager->injectedScriptFor(ScriptState::forMainWorld(frame));
-    if (injectedScript.isEmpty())
-        return;
-    injectedScript.inspectNode(node);
+    m_domAgent->inspect(node);
 }
 
 void InspectorController::dispatchMessageFromFrontend(const String& message)