Cleanup includes of XLinkNames.h

Cleanup includes of XLinkNames.h

Remove includes which are not used, and use the imageSourceURL() method
in one place to abstract away future uses of 'href'.

BUG=584142
Committed: https://crrev.com/f7a45cc5e9fc48484d3b3205db8a7026b80e8caa
Cr-Commit-Position: refs/heads/master@{#373866}

[fs, 2016-02-05 17:41:49]

fs@opera.com changed reviewers:
+ pdr@chromium.org

[Stephen Chennney, 2016-02-05 18:09:43]

schenney@chromium.org changed reviewers:
+ schenney@chromium.org

[Stephen Chennney, 2016-02-05 18:09:43]

LGTM

I wish there was some way to indicate no-longer-needed includes when uploading
changes, but I see it's a non-trivial problem.

[fs, 2016-02-05 18:53:13]

The CQ bit was checked by fs@opera.com

[commit-bot: I haz the power, 2016-02-05 18:54:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1666363007/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1666363007/1

[commit-bot: I haz the power, 2016-02-05 19:09:00]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-05 19:10:00]

Description was changed from

==========
Cleanup includes of XLinkNames.h

Remove includes which are not used, and use the imageSourceURL() method
in one place to abstract away future uses of 'href'.

BUG=584142
==========

to

==========
Cleanup includes of XLinkNames.h

Remove includes which are not used, and use the imageSourceURL() method
in one place to abstract away future uses of 'href'.

BUG=584142

Committed: https://crrev.com/f7a45cc5e9fc48484d3b3205db8a7026b80e8caa
Cr-Commit-Position: refs/heads/master@{#373866}
==========

[commit-bot: I haz the power, 2016-02-05 19:10:00]

Patchset 1 (id:??) landed as
https://crrev.com/f7a45cc5e9fc48484d3b3205db8a7026b80e8caa
Cr-Commit-Position: refs/heads/master@{#373866}