tree 44ddf7fe2ea70c013b88e6e7027a7b5bd4d68be2
parent 13c0e0d19e80fab1c65fa48d8bfbef855323e2a3
author Andrew Chant <achant@google.com> 1525986967 -0700
committer Andrew Chant <achant@google.com> 1526338011 -0700

Metrics for hardware reliability reporting

Add event metrics for hardware reliability reporting.

Events include:
 - Battery Health Snapshot
 - Battery Charge cycles
 - Physical Drop
 - Hardware Failed
 - USB Audio Device insertion & removal
 - USB Connector insertion & removal

Bug: 69978775
Test: Logged events from Pixelstats HAL
Change-Id: I9389f71ffe85a430273f33650503f714ea308a78