Fix some Task Scheduler alerts for multi-host case
Fix some Task Scheduler alerts for multi-host case

BUG=skia:

Change-Id: Ie3f2531dd952f2a2796c64586e09f5c165149ee4
Reviewed-on: https://skia-review.googlesource.com/6382
Reviewed-by: Joe Gregorio <b9cf2471ff6d33504cafe8e6f356b732b2cadced@google.com>
Reviewed-by: Ben Wagner <3ef7217be91069877d94f7907ce5479000772cd3@google.com>
Commit-Queue: 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