StateMachineObituary: Convert LogRec to String

LogRecs are mutable and StateMachine internally reuses old LogRecs
instead of creating new instances. Thus, LogRecs at the
beginning of the list may actually have the latest data, which is
confusing. Instead, save the LogRecs as Strings.

Bug: 169528463
Test: adb shell dumpsys wifi
Change-Id: I190b499cfc7099e1d37c5800f1c1d2a1f767a263
1 file changed
tree: 194d5fb8032b96279e9aa4051d1a876a2164387d
  1. apex/
  2. service/
  3. metrics_pdd_hook.py
  4. PREUPLOAD.cfg