Reschedule timeout when accessibility event occurs

Fix setting up the accessibility delegate of dialog view. We need to set
the accessibility delegate of volume dialog whenever we assign a new
value to volume dialog. So we need to call Accessibilty.init everytime
we initialize the dialog.

Fixes: 201730401
Test: atest VolumeDialogImplTest
Test: Checked the timeout is rescheduled when there is an a11y event.

Change-Id: Ia8c807b5831559505813f4b81610c8e05a1bb41f

packages/SystemUI/src/com/android/systemui/volume/VolumeDialogImpl.java

@@ -390,8 +390,6 @@ public class VolumeDialogImpl implements VolumeDialog, Dumpable,
     public void init(int windowType, Callback callback) {
         initDialog(mActivityManager.getLockTaskModeState());
 
-        mAccessibility.init();
-
         mController.addCallback(mControllerCallbackH, mHandler);
         mController.getState();
 
@@ -677,6 +675,7 @@ public class VolumeDialogImpl implements VolumeDialog, Dumpable,
         initRingerH();
         initSettingsH(lockTaskModeState);
         initODICaptionsH();
+        mAccessibility.init();
     }
 
     private boolean isWindowGravityLeft() {