Running webkit-patch rebaseline-cl on
https://codereview.chromium.org/2622553002
as follows:

Tools/Scripts/webkit-patch rebaseline-cl
Triggering try jobs for:
  android_blink_rel
  linux_trusty_blink_rel
  mac10.10_blink_rel
  mac10.11_blink_rel
  mac10.11_retina_blink_rel
  mac10.9_blink_rel
  win10_blink_rel
  win7_blink_rel
Please re-run webkit-patch rebaseline-cl once all pending try jobs have finished.

seems to trigger an android_blink_rel run, even though this is probably unnecessary, as a HarfBuzz roll will only affect layout tests, which to my knowledge are not run on Android.

Coming back to the git checkout after the bots have completed, I run 
webkit-patch rebaseline-cl again:
$ Tools/Scripts/webkit-patch rebaseline-cl 
Failed to fetch results from "https://storage.googleapis.com/chromium-layout-test-archives/android_blink_rel/1639/layout-test-results".
Try starting a new job for android_blink_rel by running :
  git cl try -b android_blink_rel

Now it fails when trying to retrieve results from the android bot.

Can I skip this platform in the rebaseline-cl script? How can we ensure the only slightly useful blink android bot does not break the rebaseline-cl workflow?

As always, thanks for looking into this tooling improvement.