Remove uses of the Legacy Notification API and tests on Linux Aura

Remove uses of the Legacy Notification API and tests on Linux Aura.

Blink is removing support for the legacy notification API, and there
are a number of Chromium-sided tests depending on it. Remove the
tests if they don't make sense anymore, or change them to use the
Web Notification API instead.

This patch also enables the Notification browser tests for Aura Linux,
part of interactive_ui_tests, since they run just fine. It are the Desktop
Notification tests which have a dependency on Screen.

BUG=348019
R=atwilson@chromium.org, dewittj@chromium.org, kalman@chromium.org, miket@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=255599

[Peter Beverloo, 2014-03-06 15:54:49]

+atwilson for notification changes.
+kalman for chrome/browser/extensions/ RS.

This fixes the test failures caused by removing support for  legacy Web
Notifications.

Bug for more info:
  http://crbug.com/348019

Patch removing support:
  https://codereview.chromium.org/184733002

Failure logs:
 
http://build.chromium.org/p/chromium.webkit/builders/Linux%20Tests/builds/35005

[not at google - send to devlin, 2014-03-06 16:02:30]

lgtm but FYI +miket since he has more notifications background than me.

Where did this new notifications API come from? Perhaps contact me offline about
it.

[Peter Beverloo, 2014-03-06 16:17:05]

On 2014/03/06 16:02:30, kalman wrote:
> Where did this new notifications API come from? Perhaps contact me offline
about
> it.

The Web Notification API is specified here:
  http://www.w3.org/TR/notifications/

Alex' proposal builds on top of that API. We currently support both, but are
removing support for the legacy notification API.

Thanks!

[Andrew T Wilson (Slow), 2014-03-06 17:54:48]

lgtm

[Peter Beverloo, 2014-03-06 19:56:34]

The CQ bit was checked by peter@chromium.org

[commit-bot: I haz the power, 2014-03-06 19:58:29]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/peter@chromium.org/187803005/40001

[miket_OOO, 2014-03-06 20:08:49]

LGTM, +dewitt to confirm that this isn't breaking anything in
chrome.notifications

[dewittj, 2014-03-06 20:48:23]

sweet! lgtm+

[commit-bot: I haz the power, 2014-03-06 21:05:36]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/peter@chromium.org/187803005/40001

[commit-bot: I haz the power, 2014-03-06 21:59:45]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/peter@chromium.org/187803005/40001

[commit-bot: I haz the power, 2014-03-07 04:04:21]

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

[commit-bot: I haz the power, 2014-03-07 04:04:22]

Retried try job too often on win_rel for step(s) base_unittests, net_unittests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[Peter Beverloo, 2014-03-07 10:52:22]

The CQ bit was checked by peter@chromium.org

[commit-bot: I haz the power, 2014-03-07 10:54:13]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/peter@chromium.org/187803005/40001

[Peter Beverloo, 2014-03-07 10:54:21]

The CQ bit was unchecked by peter@chromium.org

[Peter Beverloo, 2014-03-07 12:48:33]

Committed patchset #3 manually as r255599 (presubmit successful).