tree 8ef82e10dec2093f7eff7c0b0619453e8f6c962a
parent 08f8988bc3ff83febb1274a9aa5ba753e12ef0ed
author Wenhao Wang <wenhaowang@google.com> 1643828204 -0800
committer Wenhao Wang <wenhaowang@google.com> 1650925775 -0700

DO NOT MERGE Suppress notifications when device enter lockdown

This CL makes the following modifcations:
1. Add LockPatternUtils.StrongAuthTracker to monitor
the lockdown mode status of the phone.
2. Call mListeners.notifyRemovedLocked with all the
notifications in the mNotificationList when entering
the lockdown mode.
3. Call mListeners.notifyPostedLocked with all the
notifications in the mNotificationList when exiting
the lockdown mode.
4. Dismiss the function calls of notifyPostedLocked,
notifyRemovedLocked, and notifyRankingUpdateLocked
during the lockdown mode.

The CL also adds corresponding tests.

Bug: 173721373
Test: atest NotificationManagerServiceTest
Test: atest NotificationListenersTest
Test: manually verify the paired device cannot receive
notifications when the host phone is in lockdown mode.
Ignore-AOSP-First: pending fix for a security issue.

Change-Id: I7e83544863eeadf8272b6ff8a9bb8136d6466203
Merged-In: I7e83544863eeadf8272b6ff8a9bb8136d6466203
(cherry picked from commit 3cb6842a053e236cc98d7616ba4433c31ffda3ac)