Revert of [DevTools] Consolidate overlay-related functionality in Overlay domain

third_party/WebKit/Source/devtools/front_end/elements/ElementsPanel.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008 Matt Lilek <webkit@mattlilek.com>
  * 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 312 matching lines @@
     }
     this.focus();
   }
 
   /**
    * @override
    */
   willHide() {
     UI.context.setFlavor(Elements.ElementsPanel, null);
 
-    SDK.OverlayModel.hideDOMNodeHighlight();
+    SDK.DOMModel.hideDOMNodeHighlight();
     for (var i = 0; i < this._treeOutlines.length; ++i) {
       var treeOutline = this._treeOutlines[i];
       treeOutline.setVisible(false);
       // Detach heavy component on hide
       this._contentElement.removeChild(treeOutline.element);
       var header = this._treeOutlineHeaders.get(treeOutline);
       if (header)
         this._contentElement.removeChild(header);
     }
     if (this._popoverHelper)
@@ skipping 746 matching lines @@
    * @param {!SDK.DOMNode} node
    * @return {?{title: string, color: string}}
    */
   decorate(node) {
     return {
       color: 'orange',
       title: Common.UIString('Element state: %s', ':' + node.domModel().cssModel().pseudoState(node).join(', :'))
     };
   }
 };