Merge "Don't enable a11y service if scary dialog obscured am: 9a1b4eb21f am: 5d6d70a50e am: beb7f31d67 am: 11b6279ed4 am: adf8f8bc60 am: 9b8abd652a am: 8247008239 am: 7f1bc85e4c am: 611fda4a97  -s ours am: 1c3120f196" into oc-dev-plus-aosp