Allow character breaks for the extension name on uninstallation.

Allow character breaks for the extension name on uninstallation.

Recently this dialog is used for some type of bookmarks, where
any text can be specified by the user, and current implementation
can't wrap very long words correctly. See the screenshot in
crbug.com/491805.

BUG=491805
R=benwells@chromium.org
TEST=manually

Committed: https://crrev.com/c065b7f2bd04e8dd979bce89b9d1882435c917b7
Cr-Commit-Position: refs/heads/master@{#331896}

[benwells, 2015-05-28 23:56:42]

lgtm

[Jun Mukai, 2015-05-28 23:57:34]

The CQ bit was checked by mukai@chromium.org

[commit-bot: I haz the power, 2015-05-28 23:58:09]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1154383004/1

[commit-bot: I haz the power, 2015-05-29 00:39:41]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-29 00:40:32]

Patchset 1 (id:??) landed as
https://crrev.com/c065b7f2bd04e8dd979bce89b9d1882435c917b7
Cr-Commit-Position: refs/heads/master@{#331896}