commit 39970a79fb0f27170b039a0eb371ed8c36ece484
author Matt Falkenhagen <falken@chromium.org> Tue May 15 08:03:00 2018
committer Commit Bot <commit-bot@chromium.org> Tue May 15 08:03:00 2018
tree f9b73ad22ea09c02c3fe43c1f0fd7cd5b2dfbd24
parent f534543c867d6bfdb328761f43d72361ed3d0272

service worker: Enable ServiceWorkerRegistration#updateViaCache by default.

This ships updateViaCache which controls whether the browser cache is
used for service worker update checks. Importantly, this changes the
default behavior, since the default value of updateViaCache is 'imports',
which skips the browser cache for the main service worker script and
uses it only for import scripts. However, actually checking import
script contents for updates is not yet implemented, so effectively the
default is 'none': https://crbug.com/648295.

Thanks to Emma Haruka Iwao (yuryu@) for doing the bulk of the
implementation work.

Intent to ship: https://groups.google.com/a/chromium.org/d/msg/blink-dev/RwjXGTAbuuA/7Q3NPlJ4BAAJ

Bug: 675540
Change-Id: Ifdbaaa76b028e07ac26b9db28d9c59c7b8bd055f
Reviewed-on: https://chromium-review.googlesource.com/1056756
Commit-Queue: Matt Falkenhagen <falken@chromium.org>
Reviewed-by: Kent Tamura <tkent@chromium.org>
Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
Cr-Commit-Position: refs/heads/master@{#558639}