[Media Router] Fix styling for paper-icon-button in media-router-header.

[Media Router] Fix styling for paper-icon-button in media-router-header.

A change in Polymer left the icons off center in the paper-icon-button since we manually change the size of the icons. This is WAI from the Polymer side.

BUG=548195, 501452
Committed: https://crrev.com/cca19173f891818b701562ca4e738a27bf3f619d
Cr-Commit-Position: refs/heads/master@{#357397}

[apacible, 2015-10-31 06:26:15]

Description was changed from

==========
center icons in paper-icon-button

BUG=
==========

to

==========
[Media Router] Fix styling for paper-icon-button in media-router-header.

BUG=548195 501452
==========

[apacible, 2015-10-31 06:26:23]

Description was changed from

==========
[Media Router] Fix styling for paper-icon-button in media-router-header.

BUG=548195 501452
==========

to

==========
[Media Router] Fix styling for paper-icon-button in media-router-header.

BUG=548195, 501452
==========

[apacible, 2015-11-02 15:27:46]

Description was changed from

==========
[Media Router] Fix styling for paper-icon-button in media-router-header.

BUG=548195, 501452
==========

to

==========
[Media Router] Fix styling for paper-icon-button in media-router-header.

A change in Polymer left the icons off center in the paper-icon-button since we
manually change the size of the icons. This is WAI from the Polymer side.

BUG=548195, 501452
==========

[apacible, 2015-11-02 15:27:46]

apacible@chromium.org changed reviewers:
+ imcheng@chromium.org

[apacible, 2015-11-02 15:27:56]

PTAL, thanks!

[imcheng, 2015-11-02 17:30:54]

lgtm

[apacible, 2015-11-02 18:18:39]

The CQ bit was checked by apacible@chromium.org

[commit-bot: I haz the power, 2015-11-02 18:18:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1431513003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1431513003/1

[commit-bot: I haz the power, 2015-11-02 19:14:55]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-02 19:15:43]

Patchset 1 (id:??) landed as
https://crrev.com/cca19173f891818b701562ca4e738a27bf3f619d
Cr-Commit-Position: refs/heads/master@{#357397}