Ensure the NTP ServiceWorker has the proper site URL

Ensure the NTP ServiceWorker has the proper site URL

This CL ensures the ServiceWorker of the NTP gets recognized as such,
and that it is assigned the same effective URL as the NTP. This allows
it to run in the same process as the NTP when PlzNavigate is enabled,
fixing a regression on the PLT of the NTP.

BUG=705318
Review-Url: https://codereview.chromium.org/2898313003
Cr-Original-Commit-Position: refs/heads/master@{#475566}
Review-Url: https://codereview.chromium.org/2925833002 .
Cr-Commit-Position: refs/branch-heads/3112@{#179}
Cr-Branched-From: b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
Committed: https://chromium.googlesource.com/chromium/src/+/8d60a32d7e2aa25fef5daf100bfa49990672fc6d

[clamy, 2017-06-06 12:56:39]

Description was changed from

==========
Ensure the NTP ServiceWorker has the proper site URL

This CL ensures the ServiceWorker of the NTP gets recognized as such,
and that it is assigned the same effective URL as the NTP. This allows
it to run in the same process as the NTP when PlzNavigate is enabled,
fixing a regression on the PLT of the NTP.

BUG=705318

Review-Url: https://codereview.chromium.org/2898313003
Cr-Commit-Position: refs/heads/master@{#475566}
(cherry picked from commit a4262ab9315b24197a00cc6c942474144c1e4a7f)
==========

to

==========
Ensure the NTP ServiceWorker has the proper site URL

This CL ensures the ServiceWorker of the NTP gets recognized as such,
and that it is assigned the same effective URL as the NTP. This allows
it to run in the same process as the NTP when PlzNavigate is enabled,
fixing a regression on the PLT of the NTP.

BUG=705318

Review-Url: https://codereview.chromium.org/2898313003
Cr-Original-Commit-Position: refs/heads/master@{#475566}
Review-Url: https://codereview.chromium.org/2925833002 .
Cr-Commit-Position: refs/branch-heads/3112@{#179}
Cr-Branched-From:
b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
Committed:
https://chromium.googlesource.com/chromium/src/+/8d60a32d7e2aa25fef5daf100bfa...
==========

[clamy, 2017-06-06 12:56:40]

Committed patchset #1 (id:1) manually as
8d60a32d7e2aa25fef5daf100bfa49990672fc6d.