Add remote_db server to task_scheduler.
Add remote_db server to task_scheduler.

BUG=skia:5670

Change-Id: I71106c9d54891d5a3bf06dd8c53eee97133f1659
Reviewed-on: https://skia-review.googlesource.com/2393
Commit-Queue: Ben Wagner <3ef7217be91069877d94f7907ce5479000772cd3@google.com>
Reviewed-by: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot