Add policy for limiting the session length

chrome/common/chrome_notification_types.h

Index: chrome/common/chrome_notification_types.h
diff --git a/chrome/common/chrome_notification_types.h b/chrome/common/chrome_notification_types.h
index b1bc41e3621bf2301659c85683c722ee09a639e2..28f67d3029e0a267102014707b94909426bab2a6 100644
--- a/chrome/common/chrome_notification_types.h
+++ b/chrome/common/chrome_notification_types.h
@@ -1071,6 +1071,17 @@ enum NotificationType {
   // 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)