Spoken Feedback Browsertests: ChromeOS UI tests

Spoken Feedback Browsertests: ChromeOS UI tests

Tests for some of the ChromeOS UI elements, including:
- shelf and app launcher
- system tray
- volume/brightness sliders
- notifications
- overlay mode

BUG=None
TEST=this

Committed: https://crrev.com/55ef2cde8182e4307a50480aec7fc223e8c48a7f
Cr-Commit-Position: refs/heads/master@{#302228}

[kathrelkeld, 2014-10-30 18:28:23]

kathrelkeld@chromium.org changed reviewers:
+ dmazzoni@chromium.org

[dmazzoni, 2014-10-31 04:39:45]

The CQ bit was checked by dmazzoni@chromium.org

[dmazzoni, 2014-10-31 04:39:46]

lgtm

Fantastic! This covers a lot of features!

[commit-bot: I haz the power, 2014-10-31 04:40:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/687353004/40001

[commit-bot: I haz the power, 2014-10-31 05:21:08]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2014-10-31 05:21:49]

Patchset 3 (id:??) landed as
https://crrev.com/55ef2cde8182e4307a50480aec7fc223e8c48a7f
Cr-Commit-Position: refs/heads/master@{#302228}