[OnionSoup] Move service_worker_fetch_response_callback.mojom into Blink

https://chromium-review.googlesource.com/c/chromium/src/+/1155999
already decoupled service_worker_fetch_response_callback.mojom from
//content/ things, this CL just moves it from
//content/common/service_worker/ into
//third_party/blink/public/mojom/service_worker/.

BUG=789854

Change-Id: Id09ee5beb1086c57853927e2ba37115a55d97464
Reviewed-on: https://chromium-review.googlesource.com/1162991
Commit-Queue: Han Leon <leon.han@intel.com>
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Reviewed-by: Matt Falkenhagen <falken@chromium.org>
Reviewed-by: Makoto Shimazu <shimazu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#581106}
19 files changed