Correctly set requestor origin for worker initiated requests.

Correctly set requestor origin for worker initiated requests.

ResourceRequest.requestTorOrigin() can never be null (since it is initialized
to a unique origin rather than null). Because of that the check in
FrameFetchContext::populateRequestData meant that this code would never
actually set the requestor origin of a request. For requests from frames the
code in RenderFrameImpl::willSendRequest would then replace the origin with
the correct one anyway, but no such code exists for shared/service workers.

BUG=645281, 625969
Review-Url: https://codereview.chromium.org/2323143002
Cr-Commit-Position: refs/heads/master@{#417712}
(cherry picked from commit 65299f214fad8f609c5872bcdd5f4ea82ec29713)

Committed: https://chromium.googlesource.com/chromium/src/+/3fa4d0dbbd3f3839ec00a64e5c711bc0f3658416

[jsbell, 2016-09-12 17:19:34]

Description was changed from

==========
Correctly set requestor origin for worker initiated requests.

ResourceRequest.requestTorOrigin() can never be null (since it is initialized
to a unique origin rather than null). Because of that the check in
FrameFetchContext::populateRequestData meant that this code would never
actually set the requestor origin of a request. For requests from frames the
code in RenderFrameImpl::willSendRequest would then replace the origin with
the correct one anyway, but no such code exists for shared/service workers.

BUG=645281,625969

Review-Url: https://codereview.chromium.org/2323143002
Cr-Commit-Position: refs/heads/master@{#417712}
(cherry picked from commit 65299f214fad8f609c5872bcdd5f4ea82ec29713)
==========

to

==========
Correctly set requestor origin for worker initiated requests.

ResourceRequest.requestTorOrigin() can never be null (since it is initialized
to a unique origin rather than null). Because of that the check in
FrameFetchContext::populateRequestData meant that this code would never
actually set the requestor origin of a request. For requests from frames the
code in RenderFrameImpl::willSendRequest would then replace the origin with
the correct one anyway, but no such code exists for shared/service workers.

BUG=645281,625969

Review-Url: https://codereview.chromium.org/2323143002
Cr-Commit-Position: refs/heads/master@{#417712}
(cherry picked from commit 65299f214fad8f609c5872bcdd5f4ea82ec29713)

Committed:
https://chromium.googlesource.com/chromium/src/+/3fa4d0dbbd3f3839ec00a64e5c71...
==========

[jsbell, 2016-09-12 17:19:35]

Committed patchset #1 (id:1) manually as
3fa4d0dbbd3f3839ec00a64e5c711bc0f3658416.