GitLab

Replaces SyncChannel::Send, RenderProcessHostImpl::Send, and
GpuChannelHost::Send trace events with typed trace events. Also adds a
utility to convert the IPC class ID to a corresponding protobuf enum.

Corresponding proto buffer definitions for these events were added in
aosp/1180211.

Typed trace events will allow inclusion of the event arguments in slow
reports data in the future. The trace format is protocol-buffer based
under the hood already (see docs.perfetto.dev for details), this patch
adds strong typing for the arguments of the respective events only.

TBR: sunnyps@chromium.org
Bug: 644264
Change-Id: I91c71230e62161b08faec889bf9eb70639ae0b5e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1950986
Commit-Queue: Eric Seckler <eseckler@chromium.org>
Reviewed-by: Alex Moshchuk <alexmos@chromium.org>
Reviewed-by: Ken Rockot <rockot@google.com>
Cr-Commit-Position: refs/heads/master@{#730120}