tree cf1111724e133192f8a87e01e77654a9a721f440
parent c622c2f7520067e75de06a338a87cb3b6b035b31
author Paul Moy <pmoy@chromium.org> 1579043838 -0700
committer Commit Bot <commit-bot@chromium.org> 1579948924 +0000

platform2: change smart battery metric retrieval

Change cros_healthd_tool in debugd to use ProcessWithOutput
instead of trying to reinvent the wheel. Make the corresponding
changes to cros_healthd to use the new D-Bus interface, which
returns a string instead of a file descriptor. Add more test
coverage to cros_healthd.

BUG=chromium:1035138
TEST=build and deploy debugd, debugd-client, diagnostics to
nami and run 'telem --category=battery'. Make sure the
smart metrics are nonzero. Also run diagnostics unit tests.

Change-Id: I3b5707ccefd348d734b75e0d815ed7127d2e4763
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform2/+/2002959
Tested-by: Paul Moy <pmoy@chromium.org>
Commit-Queue: Paul Moy <pmoy@chromium.org>
Reviewed-by: Kartik Hegde <khegde@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>