Add KeepAliveStateObserver, add the Restart option

chrome/browser/ui/app_list/app_list_service_views.cc

 // Copyright 2014 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/app_list/app_list_service_views.h"
 
 #include <utility>
 
 #include "chrome/browser/lifetime/keep_alive_types.h"
 #include "chrome/browser/lifetime/scoped_keep_alive.h"
@@ skipping 99 matching lines @@
 
 AppListViewDelegate* AppListServiceViews::GetViewDelegateForCreate() {
   return GetViewDelegate(shower_.profile());
 }
 
 void AppListServiceViews::ShowForProfileInternal(
     Profile* profile,
     app_list::AppListModel::State state) {
   DCHECK(profile);
 
-  ScopedKeepAlive keep_alive(KeepAliveOrigin::APP_LIST_SERVICE_VIEWS);
+  ScopedKeepAlive keep_alive(KeepAliveOrigin::APP_LIST_SERVICE_VIEWS,
+                             KeepAliveRestartOption::DISABLED);
 
   CreateForProfile(profile);
 
   if (state != app_list::AppListModel::INVALID_STATE) {
     app_list::ContentsView* contents_view =
         shower_.app_list()->app_list_main_view()->contents_view();
     contents_view->SetActiveState(state,
                                  shower_.IsAppListVisible() /* animate */);
   }
 
   shower_.ShowForCurrentProfile();
   RecordAppListLaunch();
 }