GitLab

Running loading benchmarks on Pinpoint with a valid configuration is a
bit tricky, so this adds some guides for providing correct arguments for
Pinpoint.

Bug: 1114724
Change-Id: I64e3919b1e3d3e94b8c815e8a747f392f3da4854
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2352291Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Commit-Queue: Kunihiko Sakamoto <ksakamoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#797581}