Dynamically process the arguments instead of hardcoding them,
which is brittle when they change.

Change-Id: I08f603dc6df6e3ed34518326b67da15f6a6d6102
Reviewed-on: https://chromium-review.googlesource.com/c/1405312
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58733}