[Sync] Add a simple UI to sync-internals to create UserEvents.

chrome/browser/ui/webui/sync_internals_ui.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/webui/sync_internals_ui.h"
 
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/webui/sync_internals_message_handler.h"
 #include "chrome/common/url_constants.h"
@@ skipping 22 matching lines @@
   source->AddResourcePath(syncer::sync_ui_util::kSyncSearchJS,
                           IDR_SYNC_DRIVER_SYNC_INTERNALS_SYNC_SEARCH_JS);
   source->AddResourcePath(syncer::sync_ui_util::kAboutJS,
                           IDR_SYNC_DRIVER_SYNC_INTERNALS_ABOUT_JS);
   source->AddResourcePath(syncer::sync_ui_util::kDataJS,
                           IDR_SYNC_DRIVER_SYNC_INTERNALS_DATA_JS);
   source->AddResourcePath(syncer::sync_ui_util::kEventsJS,
                           IDR_SYNC_DRIVER_SYNC_INTERNALS_EVENTS_JS);
   source->AddResourcePath(syncer::sync_ui_util::kSearchJS,
                           IDR_SYNC_DRIVER_SYNC_INTERNALS_SEARCH_JS);
+  source->AddResourcePath(syncer::sync_ui_util::kUserEventsJS,
+                          IDR_SYNC_DRIVER_SYNC_INTERNALS_USER_EVENTS_JS);
   source->SetDefaultResource(IDR_SYNC_DRIVER_SYNC_INTERNALS_INDEX_HTML);
   return source;
 }
 
 }  // namespace
 
 SyncInternalsUI::SyncInternalsUI(content::WebUI* web_ui)
     : WebUIController(web_ui) {
   Profile* profile = Profile::FromWebUI(web_ui);
   content::WebUIDataSource::Add(profile, CreateSyncInternalsHTMLSource());
 
   web_ui->AddMessageHandler(base::MakeUnique<SyncInternalsMessageHandler>());
 }
 
 SyncInternalsUI::~SyncInternalsUI() {}