Don't skip displaying zoom levels for host-only zoom changes.

Don't skip displaying zoom levels for host-only zoom changes.

A previous change to skip displaying zoom levels for host and scheme
zoom changes caused host-only zoom changes to be skipped due to surprise
case fallthrough. This adds a break so the correct zoom settings are
displayed.

BUG=454254
Committed: https://crrev.com/e6e20775331b1c2e898fb6c87cd57eeec931434c
Cr-Commit-Position: refs/heads/master@{#314275}

[Sam McNally, 2015-02-02 06:22:55]

sammc@chromium.org changed reviewers:
+ dbeam@chromium.org

[Dan Beam, 2015-02-02 16:08:30]

lgtm

[Sam McNally, 2015-02-03 01:38:30]

The CQ bit was checked by sammc@chromium.org

[commit-bot: I haz the power, 2015-02-03 01:39:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/879333003/1

[commit-bot: I haz the power, 2015-02-03 03:41:16]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-02-03 03:41:16]

Try jobs failed on following builders:
  win8_chromium_rel on tryserver.chromium.win (None)

[Sam McNally, 2015-02-03 03:42:01]

The CQ bit was checked by sammc@chromium.org

[commit-bot: I haz the power, 2015-02-03 03:43:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/879333003/1

[commit-bot: I haz the power, 2015-02-03 05:43:48]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-03 05:44:37]

Patchset 1 (id:??) landed as
https://crrev.com/e6e20775331b1c2e898fb6c87cd57eeec931434c
Cr-Commit-Position: refs/heads/master@{#314275}