GitLab

This CL converts SelectFileDialogRequest and
SelectFileDialogPtr to new Mojo types using
PendingReceiver, Remote and SelfOwnedReceiver.

Bug: 955171
Change-Id: I776fe70be72a02ba451324b6ff0c9b436e8ff56d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1846633Reviewed-by: Sam McNally <sammc@chromium.org>
Reviewed-by: ccameron <ccameron@chromium.org>
Reviewed-by: Oksana Zhuravlova <oksamyt@chromium.org>
Commit-Queue: Julie Kim <jkim@igalia.com>
Cr-Commit-Position: refs/heads/master@{#704056}