The activity should not cover the background of the dialogs

The activity with the light theme is displayed under the dialog for
DISPLAY TEXT command and PLAY TONE command because of the recent UI
design change. That should not be the designed behavior.

Bug: 63410524
Test: manual

Change-Id: I77e9c7e614cee8b5d5464b64eae32314bcdd7e63
2 files changed