Fix invalid downcast in

The downcast wasn't necessary at all. We could just remove it. The
pointer is never actually used as a MessageType*, only upcast back to an
IPC::Message*. (There is a "dereference", but it is to pass into a method
taking const IPC::Message&.)

Leave it as an IPC::Message*.

Bug: 520760
Change-Id: I6ac697fc1676bd9bbc754c97e617ce297197432c
Reviewed-by: Antoine Labour <>
Reviewed-by: Bruce Dawson <>
Commit-Queue: David Benjamin <>
Cr-Original-Commit-Position: refs/heads/master@{#602752}
Cr-Mirrored-Commit: bf3962f083e3f69330474d15bd2718c195e2e375
1 file changed