tree abbabab2bf342a82a29133cbb869dc2a647ff2d2
parent 3c4a1503e07ccae289d9bb96c02946ee920a1d79
author David Su <dysu@google.com> 1609979379 -0800
committer David Su <dysu@google.com> 1610037238 -0800

WifiMetrics: add time since boot to ConnectionEvent

ConnectionEvent only records Unix time, while
StaEvent records time since boot. This makes it
difficult to join the two lists.

Thus, add time since boot to ConnectionEvent too,
and deprecate the Unix timestamp.

Remove mRealStartTime since that stores the same
information, but it is only stored in memory and
not uploaded.

Bug: 176929711
Test: atest FrameworksWifiTests
Updated-PDD: TRUE
Change-Id: I5663f0d92b641c3224c873bde50bab1a8f533ccd