`about:blank` is not mixed content.

`about:blank` is not mixed content.

The refactoring in [1] broke our handling of `about:blank` by moving from
`SecurityOrigin::isSecure(url)` to `SecurityOrigin::create(url)`. The
latter treats contextually-bound URLs like `about:blank` as unique security
origins, which I completely missed when writing tests.

This patch corrects the error, and adds a unit test that I should have
added a long time ago. :)

[1]: https://chromium.googlesource.com/chromium/src/+/130ee686fa00b617bfc001ceb3bb49782da2cb4e

BUG=624275
R=yoav@yoav.ws

Review-Url: https://codereview.chromium.org/2123463002
Cr-Commit-Position: refs/heads/master@{#403655}
(cherry picked from commit c6a3b5007b8aa2dbe513411b030032fef42b5b66)

Committed: https://chromium.googlesource.com/chromium/src/+/0d2188b5c55d4ad2014b93682f5d1ace3008846b

[Mike West, 2016-07-06 10:57:29]

Description was changed from

==========
`about:blank` is not mixed content.

The refactoring in [1] broke our handling of `about:blank` by moving from
`SecurityOrigin::isSecure(url)` to `SecurityOrigin::create(url)`. The
latter treats contextually-bound URLs like `about:blank` as unique security
origins, which I completely missed when writing tests.

This patch corrects the error, and adds a unit test that I should have
added a long time ago. :)

[1]:
https://chromium.googlesource.com/chromium/src/+/130ee686fa00b617bfc001ceb3bb...

BUG=624275
R=yoav@yoav.ws

Review-Url: https://codereview.chromium.org/2123463002
Cr-Commit-Position: refs/heads/master@{#403655}
(cherry picked from commit c6a3b5007b8aa2dbe513411b030032fef42b5b66)
==========

to

==========
`about:blank` is not mixed content.

The refactoring in [1] broke our handling of `about:blank` by moving from
`SecurityOrigin::isSecure(url)` to `SecurityOrigin::create(url)`. The
latter treats contextually-bound URLs like `about:blank` as unique security
origins, which I completely missed when writing tests.

This patch corrects the error, and adds a unit test that I should have
added a long time ago. :)

[1]:
https://chromium.googlesource.com/chromium/src/+/130ee686fa00b617bfc001ceb3bb...

BUG=624275
R=yoav@yoav.ws

Review-Url: https://codereview.chromium.org/2123463002
Cr-Commit-Position: refs/heads/master@{#403655}
(cherry picked from commit c6a3b5007b8aa2dbe513411b030032fef42b5b66)

Committed:
https://chromium.googlesource.com/chromium/src/+/0d2188b5c55d4ad2014b93682f5d...
==========

[Mike West, 2016-07-06 10:57:31]

Committed patchset #1 (id:1) manually as
0d2188b5c55d4ad2014b93682f5d1ace3008846b.

[Yoav Weiss, 2016-07-06 10:59:25]

On 2016/07/06 10:57:31, Mike West wrote:
> Committed patchset #1 (id:1) manually as
> 0d2188b5c55d4ad2014b93682f5d1ace3008846b.

LGTM