Fix provider lookup when coming back from notification.

- Provider lookups were being dropped because the cache lookup code throught
the info already existed.  This was due to the cache not being cleared in
all cases.
- Also made cache thread-safe since it is being used from both the ui thread
and background lookup threads.

Bug: 10545307
Change-Id: I8f10d6cc827d8ece773c2cae443b40b5ce521ad6
1 file changed
tree: 577b283e237ce75b4587c7ca2032391780fea9a4
  1. InCallUI/