[New Tab Page] Remove title iframe 1px dead zone.

[New Tab Page] Remove title iframe 1px dead zone.

Material Design tile titles are 15px high, but on some (if not all)
platforms the natural height of title content is 14px high. This creates
a click "dead zone" on the tile. This CL forces content height to be
100% to remove the dead zone.

BUG=459301
Committed: https://crrev.com/63731566d0d8e2e44e3dc0618c17f2403d99668d
Cr-Commit-Position: refs/heads/master@{#317633}

[huangs, 2015-02-17 22:18:27]

huangs@chromium.org changed reviewers:
+ mathp@chromium.org

[huangs, 2015-02-17 22:18:28]

PTAL.

[Mathieu, 2015-02-17 22:23:59]

The CQ bit was checked by mathp@chromium.org

[Mathieu, 2015-02-17 22:23:59]

lgtm

lgtm

[commit-bot: I haz the power, 2015-02-17 22:25:26]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/938473002/1

[huangs, 2015-02-17 22:31:24]

The CQ bit was unchecked by huangs@chromium.org

[huangs, 2015-02-23 19:58:29]

Verified that discrepancy I found (where the bug disappears) was due to Remote
Desktop rendering issues. Submitting.

[huangs, 2015-02-23 19:58:38]

The CQ bit was checked by huangs@chromium.org

[commit-bot: I haz the power, 2015-02-23 19:59:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/938473002/1

[commit-bot: I haz the power, 2015-02-23 20:00:12]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-23 20:00:42]

Patchset 1 (id:??) landed as
https://crrev.com/63731566d0d8e2e44e3dc0618c17f2403d99668d
Cr-Commit-Position: refs/heads/master@{#317633}