GitLab

It converts NativeWidgetNSWindow to new Mojo types using
PendingAssociatedReceiver, AssociatedReceiver, and
AssociatedRemote.

Bug: 955171
Change-Id: I1da0bd8961616cb6f819a0cef44c9bcb03f0215b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1895092
Commit-Queue: Julie Kim <jkim@igalia.com>
Reviewed-by: Oksana Zhuravlova <oksamyt@chromium.org>
Reviewed-by: ccameron <ccameron@chromium.org>
Reviewed-by: Sam McNally <sammc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#712048}