Update AmbientContextManager with suggestions.

Address comments in ag/20668329.

Bug: 244181656
Test: atest CtsAmbientContextServiceTestCases atest CtsWearableSensingServiceTestCasesi
Ignore-AOSP-First: to prevent new feature leak.
Change-Id: I488682a377ee8fd7714013fc88c4b94d21159c00
1 file changed