Don't show pointer cursor over an icon button if it is disabled.

Don't show pointer cursor over an icon button if it is disabled.

BUG=487849
TEST=manually

Committed: https://crrev.com/8caa763157d5d0747e0205e18a16286197baa758
Cr-Commit-Position: refs/heads/master@{#330627}

[dzhioev (left Google), 2015-05-19 20:59:15]

dzhioev@chromium.org changed reviewers:
+ achuith@google.com

[dzhioev (left Google), 2015-05-19 20:59:26]

Hi, PTAL

[achuithb, 2015-05-19 21:17:44]

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

[achuithb, 2015-05-19 21:17:45]

Lgtm

My comfort with css is low so please feel free to get another review from an
expert as well

[dzhioev (left Google), 2015-05-19 21:31:33]

The CQ bit was checked by dzhioev@chromium.org

[commit-bot: I haz the power, 2015-05-19 21:32:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1142253002/1

[commit-bot: I haz the power, 2015-05-19 22:03:17]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-19 22:04:52]

Patchset 1 (id:??) landed as
https://crrev.com/8caa763157d5d0747e0205e18a16286197baa758
Cr-Commit-Position: refs/heads/master@{#330627}