Support updating a service worker registration's updateViaCache flag

Support updating a service worker registration's updateViaCache flag
https://bugs.webkit.org/show_bug.cgi?id=180888

Reviewed by Brady Eidson.

LayoutTests/imported/w3c:

Rebaseline WPT test now that more checks are passing.

* web-platform-tests/service-workers/service-worker/registration-updateviacache.https-expected.txt:

Source/WebCore:

Support updating a service worker registration's updateViaCache flag to match other browsers:
- https://github.com/w3c/ServiceWorker/issues/1189

No new tests, rebaselined existing test.

* workers/service/SWClientConnection.cpp:
(WebCore::SWClientConnection::setRegistrationUpdateViaCache):
* workers/service/SWClientConnection.h:
* workers/service/ServiceWorkerRegistration.cpp:
(WebCore::ServiceWorkerRegistration::setUpdateViaCache):
* workers/service/ServiceWorkerRegistration.h:
* workers/service/server/SWServer.h:
* workers/service/server/SWServerJobQueue.cpp:
(WebCore::SWServerJobQueue::runRegisterJob):
* workers/service/server/SWServerRegistration.cpp:
(WebCore::SWServerRegistration::setUpdateViaCache):
* workers/service/server/SWServerRegistration.h:

Source/WebKit:

* StorageProcess/ServiceWorker/WebSWServerConnection.cpp:
(WebKit::WebSWServerConnection::setRegistrationUpdateViaCache):
* StorageProcess/ServiceWorker/WebSWServerConnection.h:
* WebProcess/Storage/WebSWClientConnection.messages.in:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@225992 268f45cc-cd09-0410-ab3c-d52691b4dbfc