GitLab

This CL converts IsolatedXRGamepadProvider{Ptr, Request} in device
to the new Mojo type, and use
pending_receiver<IsolatedXRGamepadProvider> in
isolated_xr_service.mojom.

Bug: 955171
Change-Id: Ib42d1a7f36c748849bbab5f058fbe7f2c0d129e1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1847531Reviewed-by: Sam McNally <sammc@chromium.org>
Reviewed-by: Piotr Bialecki <bialpio@chromium.org>
Reviewed-by: Ken Rockot <rockot@google.com>
Commit-Queue: Miyoung Shin <myid.shin@igalia.com>
Cr-Commit-Position: refs/heads/master@{#704439}