Replace fields with getters in keepalive API

General guidance is to have getters in the API instead of fields.

Fixes: 181014882
Test: m
Change-Id: Id4bfc447701e8d0380163047779fbba043f17b6f
2 files changed
tree: b665b9ccc5b03e30dca2a2ec6965ec465010c360
  1. framework/
  2. service/
  3. OWNERS
  4. TEST_MAPPING