The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra/+/21e1ae91401be36d48a87deee2724d8815f9d769

commit 21e1ae91401be36d48a87deee2724d8815f9d769
Author: Emma <emso@chromium.org>
Date: Wed Apr 26 13:10:09 2017

Adds exposure of swarming task id in progress response

Bug:715534

Change-Id: I227d8b8cdca6a2960e9c993224e74d461e68fd9b
Reviewed-on: https://chromium-review.googlesource.com/488023
Reviewed-by: Paweł Hajdan Jr. <phajdan.jr@chromium.org>
Commit-Queue: Emma Söderberg <emso@chromium.org>

[modify] https://crrev.com/21e1ae91401be36d48a87deee2724d8815f9d769/go/src/infra/tricium/api/v1/tricium.proto
[modify] https://crrev.com/21e1ae91401be36d48a87deee2724d8815f9d769/go/src/infra/tricium/api/v1/pb.discovery.go
[modify] https://crrev.com/21e1ae91401be36d48a87deee2724d8815f9d769/go/src/infra/tricium/api/v1/tricium.pb.go
[modify] https://crrev.com/21e1ae91401be36d48a87deee2724d8815f9d769/go/src/infra/tricium/appengine/frontend/rpc_progress.go