GitLab

Directly passing bounds_px will shift opaque region by surface location.
This happens to WaylandAuxiliaryWindow. Use region_px instead for
correctness.

Change-Id: I48180cc5b9da3864f497e6a1d1a4f0b8ce7c0b23
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2563361Reviewed-by: Maksim Sisov (GMT+2) <msisov@igalia.com>
Commit-Queue: Kramer Ge <fangzhoug@chromium.org>
Cr-Commit-Position: refs/heads/master@{#832379}