Move site_engagement.mojom to chrome/browser/engagement.

chrome/browser/resources/engagement/site_engagement.js

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 'use strict';
 
 define('main', [
-    'chrome/browser/ui/webui/engagement/site_engagement.mojom',
+    'chrome/browser/engagement/site_engagement.mojom',
     'content/public/renderer/frame_interfaces',
 ], function(siteEngagementMojom, frameInterfaces) {
   return function() {
     var uiHandler = new siteEngagementMojom.SiteEngagementUIHandlerPtr(
         frameInterfaces.getInterface(
             siteEngagementMojom.SiteEngagementUIHandler.name));
 
     var engagementTableBody = $('engagement-table-body');
     var updateInterval = null;
     var info = null;
@@ skipping 146 matching lines @@
       uiHandler.getSiteEngagementInfo().then(function(response) {
         info = response.info;
         renderTable(info);
       });
     };
 
     updateEngagementTable();
     enableAutoupdate();
   };
 });