GitLab

Convert the remaining bits in both the implementation and clients from the
browser and renderer processes for the XRInputSourceButtonListener
interface.

Bug: 955171, 978694
Change-Id: I2647b973b9784061918030bd2fb5f10e04b98212
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1844995Reviewed-by: Christopher Grant <cjgrant@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Oksana Zhuravlova <oksamyt@chromium.org>
Reviewed-by: Dominick Ng <dominickn@chromium.org>
Reviewed-by: Alexander Cooper <alcooper@chromium.org>
Commit-Queue: Mario Sanchez Prada <mario@igalia.com>
Cr-Commit-Position: refs/heads/master@{#706397}