Repurpose unused string for Accessibility

Repurpose unused string for Accessibility

The TitleCondensed string property is now used to pass strings
for accessibility.  This gets around the inability to
set the content description normally for the custom menus.

BUG=293658
Committed: https://crrev.com/e9ac4cae1e9a6ff4f72c81faa5b109bac2cb7f55
Cr-Commit-Position: refs/heads/master@{#302533}

[gone, 2014-11-04 00:04:31]

dfalcantara@chromium.org changed reviewers:
+ aurimas@chromium.org

[aurimas (slooooooooow), 2014-11-04 00:06:28]

lgtm

[gone, 2014-11-04 00:10:58]

The CQ bit was checked by dfalcantara@chromium.org

[commit-bot: I haz the power, 2014-11-04 00:13:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/691113005/1

[commit-bot: I haz the power, 2014-11-04 01:00:47]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-11-04 01:02:10]

Patchset 1 (id:??) landed as
https://crrev.com/e9ac4cae1e9a6ff4f72c81faa5b109bac2cb7f55
Cr-Commit-Position: refs/heads/master@{#302533}