[OnionSoup] Move service_worker_provider.mojom to blink/public/mojom/

This CL moves service_worker_provider.mojom from:
content/common/service_worker/
to:
third_party/blink/public/mojom/service_worker/

Bug: 789854
Change-Id: Ice3481fca77cdf1a51f823a8fa46ab17975f039f
Reviewed-on: https://chromium-review.googlesource.com/c/1388220
Commit-Queue: Richard Li <richard.li@intel.com>
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Reviewed-by: Leon Han <leon.han@intel.com>
Cr-Commit-Position: refs/heads/master@{#618472}
49 files changed