b/15746597. Adjust workflow when there are no results for a GAL search.

The actual crash is a wtf but the problem is we are not properly handling
empty results from Exchange. Now we are.  The wtf logging should remain
but the code around it needed changing.

Change-Id: I06c214cc79cf5690ec1685655e4adba817df9295
(cherry picked from commit 2db0b68170b046b41c0319768d7018d093e536a4)
4 files changed