Devserver: Allow xbuddy translate to take in an image_dir kwarg.

Currently xbuddy is tied to gs://chromeos-image-archive. This change
allows us to specify the image directory in Google Storage to use
when requesting a translation.

TEST=Able to find the latest build in other buckets.

Change-Id: Iddc2ab2b0675591b53311ebe9e1692d0c0859377
Reviewed-by: Simran Basi <>
Tested-by: Simran Basi <>
Commit-Queue: Simran Basi <>
4 files changed