Replace GURL in BudgetDatabase/BudgetManager with url::Origin

Replace GURL in BudgetDatabase/BudgetManager with url::Origin

The Mojo service uses url::Origin, and that's the better way to be
storing origins, so converting over to using that instead of GURL. This
also does a bit of cleanup on the tests, which had a mix of methods which
took an origin argument and methods which created the origin internally.
Now the test has a member which is calculated once.

BUG=617971
Committed: https://crrev.com/03be8a1d1c74c06fbe79b6cb79b879b50213b83a
Cr-Commit-Position: refs/heads/master@{#417593}

[harkness, 2016-09-09 14:39:25]

harkness@chromium.org changed reviewers:
+ peter@chromium.org

[Peter Beverloo, 2016-09-09 14:50:53]

The CQ bit was checked by peter@chromium.org

[Peter Beverloo, 2016-09-09 14:50:53]

lgtm

[commit-bot: I haz the power, 2016-09-09 14:51:09]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-09-09 16:01:29]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-09 16:02:57]

Description was changed from

==========
Replace GURL in BudgetDatabase/BudgetManager with url::Origin

The Mojo service uses url::Origin, and that's the better way to be
storing origins, so converting over to using that instead of GURL. This
also does a bit of cleanup on the tests, which had a mix of methods which
took an origin argument and methods which created the origin internally.
Now the test has a member which is calculated once.

BUG=617971
==========

to

==========
Replace GURL in BudgetDatabase/BudgetManager with url::Origin

The Mojo service uses url::Origin, and that's the better way to be
storing origins, so converting over to using that instead of GURL. This
also does a bit of cleanup on the tests, which had a mix of methods which
took an origin argument and methods which created the origin internally.
Now the test has a member which is calculated once.

BUG=617971

Committed: https://crrev.com/03be8a1d1c74c06fbe79b6cb79b879b50213b83a
Cr-Commit-Position: refs/heads/master@{#417593}
==========

[commit-bot: I haz the power, 2016-09-09 16:02:58]

Patchset 1 (id:??) landed as
https://crrev.com/03be8a1d1c74c06fbe79b6cb79b879b50213b83a
Cr-Commit-Position: refs/heads/master@{#417593}