[IdentifiabilityStudy] Instrument deviceorientation event

In this way we'll be able to collect data on usage of DeviceOrientation.

Change-Id: Ifce0793a57ad9a6d653c467c50d92ccb6c37f01c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5594756


Reviewed-by: Mike West <mkwst@chromium.org>
Auto-Submit: Antonio Sartori <antoniosartori@chromium.org>
Commit-Queue: Mike West <mkwst@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1312725}