Rename "desktop notifications" to "notifications" in content settings.

Rename "desktop notifications" to "notifications" in content settings.

This makes its appearance consistent with the permission request, which
asks a user whether the site can show notifications.

BUG=458143
Committed: https://crrev.com/616dbf254bcfbf3c84b9fa579c802cc43821b3cf
Cr-Commit-Position: refs/heads/master@{#316220}

[Peter Beverloo, 2015-02-12 17:17:18]

peter@chromium.org changed reviewers:
+ sashab@chromium.org

[Peter Beverloo, 2015-02-12 17:17:20]

+sasha for review (no owners needed)

[Michael van Ouwerkerk, 2015-02-13 14:16:41]

mvanouwerkerk@chromium.org changed reviewers:
+ mvanouwerkerk@chromium.org

[Michael van Ouwerkerk, 2015-02-13 14:16:42]

lgtm indeed

[mlamouri (slow - plz ping), 2015-02-13 14:16:57]

mlamouri@chromium.org changed reviewers:
+ mlamouri@chromium.org
- mvanouwerkerk@chromium.org

[mlamouri (slow - plz ping), 2015-02-13 14:16:58]

lgtm

[Peter Beverloo, 2015-02-13 14:17:05]

The CQ bit was checked by peter@chromium.org

[commit-bot: I haz the power, 2015-02-13 14:17:28]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/919033002/1

[commit-bot: I haz the power, 2015-02-13 15:27:02]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-13 15:27:39]

Patchset 1 (id:??) landed as
https://crrev.com/616dbf254bcfbf3c84b9fa579c802cc43821b3cf
Cr-Commit-Position: refs/heads/master@{#316220}

[sashab, 2015-02-15 23:23:58]

late lgtm! ;)