[DevTools] Consolidate overlay-related functionality in Overlay domain

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

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  *
  * 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
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 106 matching lines @@
    */
   _highlightDOMNode(showHighlight, mode, event) {
     event.consume();
     if (showHighlight && this.node()) {
       if (this._highlightMode === mode)
         return;
       this._highlightMode = mode;
       this.node().highlight(mode);
     } else {
       delete this._highlightMode;
-      SDK.DOMModel.hideDOMNodeHighlight();
+      SDK.OverlayModel.hideDOMNodeHighlight();
     }
 
     for (var i = 0; this._boxElements && i < this._boxElements.length; ++i) {
       var element = this._boxElements[i];
       if (!this.node() || mode === 'all' || element._name === mode)
         element.style.backgroundColor = element._backgroundColor;
       else
         element.style.backgroundColor = '';
     }
   }
@@ skipping 307 matching lines @@
       if (commitEditor)
         this.update();
     }
   }
 
   _editingCommitted(element, userInput, previousContent, context) {
     this.editingEnded(element, context);
     this._applyUserInput(element, userInput, previousContent, context, true);
   }
 };