Import history compare controller.

GitOrigin-RevId: 61d9a3f340703b07046bb6d7a6d67905befd6faa

services/web/public/src/ide/history/HistoryManager.js

@@ -19,6 +19,7 @@ define([
   'moment',
   'ide/colors/ColorManager',
   'ide/history/util/displayNameForUser',
+  'ide/history/controllers/HistoryCompareController',
   'ide/history/controllers/HistoryListController',
   'ide/history/controllers/HistoryDiffController',
   'ide/history/directives/infiniteScroll'