GitLab

Remove the use-ddljson-api flag for forcing test doodles on the NTP.
Allow forcing of doodles via the url param '?force-doodle=x', for x
from 0 to 4. They can also (still) be forced via the command line flag.

Bug: None
Cq-Include-Trybots: luci.chromium.try:ios-simulator-cronet;luci.chromium.try:ios-simulator-full-configs
Change-Id: Ibf9836baf2dd43114d85b3daf892c2745a30cb89
Reviewed-on: https://chromium-review.googlesource.com/c/1278952Reviewed-by: Ramya Nagarajan <ramyan@chromium.org>
Commit-Queue: Kyle Milka <kmilka@chromium.org>
Cr-Commit-Position: refs/heads/master@{#601203}