Merge "Prevent GC requests from piling up in LockSettingsService" into main am: 7dc33f35

    private final StorageManagerInternal mStorageManagerInternal;

    private final Object mGcWorkToken = new Object();

    // This class manages life cycle events for encrypted users on File Based Encryption (FBE)

    // devices. The most basic of these is to show/hide notifications about missing features until

    // the user unlocks the account and credential-encrypted storage is available.

     * release references to the argument.

     */

    private void scheduleGc() {

        // Cancel any existing GC request first, so that GC requests don't pile up if lockscreen

        // credential operations are happening very quickly, e.g. as sometimes happens during tests.

        //

        // This delays the already-requested GC, but that is fine in practice where lockscreen

        // operations don't happen very quickly.  And the precise time that the sanitization happens

        // isn't very important; doing it within a minute can be fine, for example.

        mHandler.removeCallbacksAndMessages(mGcWorkToken);

        mHandler.postDelayed(() -> {

            System.gc();

            System.runFinalization();

            System.gc();

        }, 2000);

        }, mGcWorkToken, 2000);

    }

    private class DeviceProvisionedObserver extends ContentObserver {