GitLab

- Set minimum window size to 600x320 as per UX guidelines as it
  is the minimum size that displays all informational columns for
  a print job.

Bug: 1053704
Change-Id: I8f122affd87cd8e5cfac20d5ce8d935e3237a49a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2259133Reviewed-by: Giovanni Ortuño Urquidi <ortuno@chromium.org>
Reviewed-by: Zentaro Kavanagh <zentaro@chromium.org>
Commit-Queue: jimmy gong <jimmyxgong@chromium.org>
Cr-Commit-Position: refs/heads/master@{#781605}