GitLab

Report animation smoothness for the transition into the hotseat in the
HomeLauncher.

The original change caused use-of-uninitialized-value flaky tests. This
is a possible fix for the issue by explicitly resetting the
|animation_metrics_reporter_|

Bug: 1022178, 1022177, 1028255
Change-Id: I9abe9532e4f8b8cbc8c3700b21db48144f76f767
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1940562Reviewed-by: Manu Cornet <manucornet@chromium.org>
Commit-Queue: Ana Salazar <anasalazar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#720619}