GitLab

This CL converts usage of |TracingSessionHostRequest| to
mojo::PendingReceiver<mojom::TracingSessionHost>

Bug: 955171, 978694
Change-Id: I79f31015757c0a92179c60fb5fea69adcd24ae59
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1831930Reviewed-by: Colin Blundell <blundell@chromium.org>
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Commit-Queue: Abhijeet Kandalkar <abhijeet@igalia.com>
Cr-Commit-Position: refs/heads/master@{#702857}