Add policy for limiting the session length

chrome/common/chrome_notification_types.h

 // Copyright 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.
 
 #ifndef CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_
 #define CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_
 
 #include "build/build_config.h"
 #include "content/public/browser/notification_types.h"
 
@@ skipping 1053 matching lines @@
 
   // Sent when high contrast mode is toggled.
   NOTIFICATION_CROS_ACCESSIBILITY_TOGGLE_HIGH_CONTRAST_MODE,
 
   // Sent when screen magnifier is toggled.
   NOTIFICATION_CROS_ACCESSIBILITY_TOGGLE_SCREEN_MAGNIFIER,
 
   // Sent when spoken feedback is toggled.
   NOTIFICATION_CROS_ACCESSIBILITY_TOGGLE_SPOKEN_FEEDBACK,
 
+  // Sent when it is determined that no session length limit is set. Sent once
+  // during login if no limit is set and whenever an existing limit is removed.
+  // The source is the SessionLengthLimiter for the current user. There are no
+  // details.
+  NOTIFICATION_SESSION_LENGTH_UNLIMITED,
+
+  // Sent when a session length limit is set and the remaining session time
+  // changes. Sent immediately when a limit comes into force and once per second
+  // thereafter. The source is the SessionLengthLimiter for the current user.
+  // The details are the remaining session time as a base::TimeDelta.
+  NOTIFICATION_REMAINING_SESSION_TIME_CHANGED,
 #endif
 
 #if defined(TOOLKIT_VIEWS)
   // Sent when a bookmark's context menu is shown. Used to notify
   // tests that the context menu has been created and shown.
   NOTIFICATION_BOOKMARK_CONTEXT_MENU_SHOWN,
 
   // Notification that the nested loop using during tab dragging has returned.
   // Used for testing.
   NOTIFICATION_TAB_DRAG_LOOP_DONE,
@@ skipping 149 matching lines @@
   // Currently only Content and Chrome define and use notifications.
   // Custom notifications not belonging to Content and Chrome should start
   // from here.
   NOTIFICATION_CHROME_END,
 };
 
 }  // namespace chrome
 
 
 #endif  // CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_