DO NOT MERGE AccessibilityInjectorTest did not restore the default key binsings.

CHERRY PICK FROM MASTER

1. AccessibilityInjectorTest changes the key bindings and when done
   restores the defatult ones. The restoreation was not working.

bug:4905620

Change-Id: I812bad0b748637ded0ce69ace12517511f62f726
1 file changed