Add UMA for window bounds change latency when display rotates

This CL adds UMA to measure the time elapses from display rotation until
the window bounds of the top maximized window is changed.

BUG=b:295119139
TEST=manually checked chrome://histograms
TEST=ArcWmMetricsTest.*

Change-Id: Ied60ebfe2c9ec4306b9de69d53e5f073b143efde
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5040921
Reviewed-by: Toshiki Kikuchi <toshikikikuchi@chromium.org>
Commit-Queue: Lingyu Feng <lingyufeng@chromium.org>
Auto-Submit: Lingyu Feng <lingyufeng@chromium.org>
Reviewed-by: Yuichiro Hanada <yhanada@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1233826}