Remove unnecessary variable, the creation of which can cause a crash.

Remove unnecessary variable, the creation of which can cause a crash.

The NSFont object could be nil, which would have a NULL font name, which when
converted to a std::string would cause a crash. The font name is already in the
FontDescriptor, so it's entirely unnecessary.

BUG=452651
R=avi@chromium.org

Committed: https://crrev.com/b92cea6dc0d441a54574b1e17c1b82e265fd4463
Cr-Commit-Position: refs/heads/master@{#318911}

[Avi (use Gerrit), 2015-03-03 17:53:37]

Oh.

LGTM

[Robert Sesek, 2015-03-03 17:58:13]

The CQ bit was checked by rsesek@chromium.org

[commit-bot: I haz the power, 2015-03-03 17:59:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/969683003/1

[commit-bot: I haz the power, 2015-03-03 18:38:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-03 18:40:34]

Patchset 1 (id:??) landed as
https://crrev.com/b92cea6dc0d441a54574b1e17c1b82e265fd4463
Cr-Commit-Position: refs/heads/master@{#318911}