Devtools: Create a separate mode to turn LayoutEditor on

Source/devtools/front_end/sdk/DOMModel.js

Index: Source/devtools/front_end/sdk/DOMModel.js
diff --git a/Source/devtools/front_end/sdk/DOMModel.js b/Source/devtools/front_end/sdk/DOMModel.js
index 67ff9868119695c850412d178e69878edebf5e4d..645e32f0bf227bcdf2eaa95ed490234378fe346d 100644
--- a/Source/devtools/front_end/sdk/DOMModel.js
+++ b/Source/devtools/front_end/sdk/DOMModel.js
@@ -1733,9 +1733,7 @@ WebInspector.DOMModel.prototype = {
     highlightDOMNodeForTwoSeconds: function(nodeId)
     {
         this.highlightDOMNode(nodeId);
-
-        if (!Runtime.experiments.isEnabled("layoutEditor"))
-            this._hideDOMNodeHighlightTimeout = setTimeout(WebInspector.DOMModel.hideDOMNodeHighlight.bind(WebInspector.DOMModel), 2000);
+        this._hideDOMNodeHighlightTimeout = setTimeout(WebInspector.DOMModel.hideDOMNodeHighlight.bind(WebInspector.DOMModel), 2000);
     },
 
     /**
@@ -1798,7 +1796,6 @@ WebInspector.DOMModel.prototype = {
             highlightConfig.eventTargetColor = WebInspector.Color.PageHighlight.EventTarget.toProtocolRGBA();
             highlightConfig.shapeColor = WebInspector.Color.PageHighlight.Shape.toProtocolRGBA();
             highlightConfig.shapeMarginColor = WebInspector.Color.PageHighlight.ShapeMargin.toProtocolRGBA();
-            highlightConfig.showLayoutEditor = Runtime.experiments.isEnabled("layoutEditor");
             highlightConfig.displayAsMaterial = Runtime.experiments.isEnabled("materialDesign");
         }
         return highlightConfig;