tree ee115ebd7ba3ff22674b9f521d9290b354eda3ff
parent ec4c269f94c8278ddb1c5a48f62525a460bd038a
author Santos Cordon <santoscordon@google.com> 1557848699 +0100
committer Santos Cordon <santoscordon@google.com> 1559217615 +0100

Adding some brightness logging.

Logs each time there's a change to the rules that control brightness.
Example: screen_off -> automatic -> manual -> manual [dimmed]

Adds a few lines to the log on startup and during major transitions (screen
off/doze/on), but stays pretty quiet out of transitions.

This should help debugging some temporary brightness bugs that we get on
occasion.

Test: manual
Bug: 131412806
Change-Id: I4db53547b2edb25863cebc6d5f44f4dacc80a1a0