Merge "Remove User Switched Announcement" into main

    <!-- Notification action button. Click it will open the bluetooth device details page for this hearing device. It will be shown when making a phone call with the hearing device. [CHAR LIMIT=none] -->

    <string name="hearing_device_notification_settings_button">Settings</string>

    <!-- Text spoken when the current user is switched if accessibility is enabled. [CHAR LIMIT=none] -->

    <string name="user_switched">Current user <xliff:g id="name" example="Bob">%1$s</xliff:g>.</string>

    <!-- Message shown when switching to a user [CHAR LIMIT=none] -->

    <string name="user_switching_message">Switching to <xliff:g id="name" example="Bob">%1$s</xliff:g>\u2026</string>

    <!-- Message when logging out a user on a split user system -->

                        this, 0, oldUserState.mUserId));

            }

            // Announce user changes only if more than one exist.

            final boolean announceNewUser = mUserManager.getUsers().size() > 1;

            // The user changed.

            mCurrentUserId = userId;

            AccessibilityUserState userState = getCurrentUserStateLocked();

            // As an initialization step, update the shortcuts for the current user.

            updateShortcutsForCurrentNavigationMode();

            if (announceNewUser) {

                // Schedule announcement of the current user if needed.

                mMainHandler.sendMessageDelayed(

                        obtainMessage(AccessibilityManagerService::announceNewUserIfNeeded, this),

                        WAIT_FOR_USER_STATE_FULLY_INITIALIZED_MILLIS);

            }

            for (IUserInitializationCompleteCallback callback

                    : mUserInitializationCompleteCallbacks) {

                try {

        }

    }

    private void announceNewUserIfNeeded() {

        synchronized (mLock) {

            AccessibilityUserState userState = getCurrentUserStateLocked();

            if (userState.isHandlingAccessibilityEventsLocked()) {

                String message = mContext.getString(R.string.user_switched,

                        mUserManager.getUserInfo(mCurrentUserId).name);

                AccessibilityEvent event = AccessibilityEvent.obtain(

                        AccessibilityEvent.TYPE_ANNOUNCEMENT);

                event.getText().add(message);

                sendAccessibilityEventLocked(event, mCurrentUserId);

            }

        }

    }

    private void unlockUser(int userId) {

        synchronized (mLock) {

            int parentUserId = mSecurityPolicy.resolveProfileParentLocked(userId);