Select service worker for documents with data/blob URLS

Select service worker for documents with data/blob URLS
https://bugs.webkit.org/show_bug.cgi?id=181213

Patch by Youenn Fablet <youenn@apple.com> on 2018-01-03
Reviewed by Alex Christensen.

Source/WebCore:

Covered by updated test.

Reusing the service worker of the parent for blob/data URL documents.

* loader/DocumentLoader.cpp:
(WebCore::isLocalURL):
(WebCore::DocumentLoader::commitData):

LayoutTests:

* http/tests/workers/service/serviceworkerclients-claim.https-expected.txt:
* http/tests/workers/service/serviceworkerclients-claim.https.html:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@226361 268f45cc-cd09-0410-ab3c-d52691b4dbfc