Address comments from API Review.

Bug: 74975825
Bug: 74976716
Bug: 74976875
Test: test on phone
Merged-In: I5417e5dd95c75fd3fd9fa98d7559511bd0fcd8a0
Change-Id: I5417e5dd95c75fd3fd9fa98d7559511bd0fcd8a0
6 files changed