[DevTools] Add interstitial events to Inspector domain.

Source/devtools/front_end/main/Main.js

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2007 Matt Lilek (pewtermoose@gmail.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 614 matching lines @@
     },
 
     /**
      * @override
      * @param {number} callId
      * @param {string} script
      */
     evaluateForTestInFrontend: function(callId, script)
     {
         WebInspector.evaluateForTestInFrontend(callId, script);
+    },
+
+    /**
+     * @override
+     */
+    interstitialShown: function()
+    {
+        // Frontend is not interested in interstitials.
+    },
+
+    /**
+     * @override
+     */
+    interstitialHidden: function()
+    {
+        // Frontend is not interested in interstitials.
     }
 }
 
 WebInspector.reload = function()
 {
     InspectorAgent.reset();
     window.location.reload();
 }
 
 /**
@@ skipping 263 matching lines @@
 
 WebInspector.Main.InspectedNodeRevealer.prototype = {
     /**
      * @param {!WebInspector.Event} event
      */
     _inspectNode: function(event)
     {
         WebInspector.Revealer.reveal(/** @type {!WebInspector.DOMNode} */ (event.data));
     }
 }