base

Invalid accessibility state if UI test process crashes in a bad time.

We allow a fake accessibility service to connect to the system for UI
automation. If the process hosting the fake service dies right after
registering it, the accessibility layer ends up in a bad state and
subsequent attempts to connect UI automation service fail.

bug:17725904

Change-Id: Idad288eab41bbdd486d95e1e5803220640653fb7