[DevTools] Remove obsolete experiment flags.

third_party/WebKit/Source/devtools/front_end/sdk/DOMModel.js

 /*
  * Copyright (C) 2009, 2010 Google Inc. All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 1747 matching lines @@
     if (mode === 'all' || mode === 'border')
       highlightConfig.borderColor = Common.Color.PageHighlight.Border.toProtocolRGBA();
 
     if (mode === 'all' || mode === 'margin')
       highlightConfig.marginColor = Common.Color.PageHighlight.Margin.toProtocolRGBA();
 
     if (mode === 'all') {
       highlightConfig.eventTargetColor = Common.Color.PageHighlight.EventTarget.toProtocolRGBA();
       highlightConfig.shapeColor = Common.Color.PageHighlight.Shape.toProtocolRGBA();
       highlightConfig.shapeMarginColor = Common.Color.PageHighlight.ShapeMargin.toProtocolRGBA();
-      highlightConfig.displayAsMaterial = Runtime.experiments.isEnabled('inspectTooltip');
+      highlightConfig.displayAsMaterial = true;
     }
     return highlightConfig;
   }
 
   /**
    * @param {!SDK.DOMNode} node
    * @param {function(?Protocol.Error, ...)=} callback
    * @return {function(...)}
    * @template T
    */
@@ skipping 383 matching lines @@
   /**
    * @override
    * @param {!Protocol.Page.FrameId} frameId
    */
   highlightFrame(frameId) {
     this._agent.highlightFrame(
         frameId, Common.Color.PageHighlight.Content.toProtocolRGBA(),
         Common.Color.PageHighlight.ContentOutline.toProtocolRGBA());
   }
 };