tree fe946391a48868051a5b8eab294bdc0e60838bba
parent e91012ba881659e7777aedb60f580384cb0925dd
author Eino-Ville Talvala <etalvala@google.com> 1499729030 -0700
committer Eino-Ville Talvala <etalvala@google.com> 1499969650 -0700

CameraServiceProxy: Log camera usage metrics

- Add new events for camera usage by camera facing
- Dump stored camera events into metrics logs
- Shuffle event ordering for privacy
- Limit history to 100 entries at most

Test: Verify event log collection includes camera events
Bug: 32449509
Change-Id: I2e80b84f9bba3691893dca653ac085fef0b6c98c