This translates the spans into protos and does the actual publishing to
the Clearcut endpoint using cros build's _LOG_SOURCE so it will be
routed to their Sawmill. The service_name on the trace is what will be
used to store our traces in an F1 table accessible by us.
Bug: 326277821
Change-Id: Id1af3b7d5cffa6d9bfb86c34185e4247e85f9619
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/5888844
Reviewed-by: Terrence Reilly <treilly@google.com>
Commit-Queue: Struan Shrimpton <sshrimp@google.com>
Struan Shrimpton