Gtk3: Allow theme authors to style Chromium widgets specially

Gtk3: Allow theme authors to style Chromium widgets specially

Add a "chromium" CSS class to all widgets, and update the doc to
reflect the change to GTK theme authors.

BUG=132847
R=erg@chromium.org

Review-Url: https://codereview.chromium.org/2622773004
Cr-Commit-Position: refs/heads/master@{#442685}
Committed: https://chromium.googlesource.com/chromium/src/+/acc4214c4dece4e70fb53355d557bd45f35965d6

[Elliot Glaysher, 2017-01-10 20:09:30]

lgtm

[Tom (Use chromium acct), 2017-01-10 20:28:20]

The CQ bit was checked by thomasanderson@google.com

[Tom (Use chromium acct), 2017-01-10 20:28:21]

The patchset sent to the CQ was uploaded after l-g-t-m from erg@chromium.org
Link to the patchset: https://codereview.chromium.org/2622773004/#ps20001
(title: "Remove dependent CL")

[commit-bot: I haz the power, 2017-01-10 20:29:04]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-10 21:11:49]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1484080100779510,
"parent_rev": "2ff7705a8ca000902ea0b6ebed65f01b90a646a9", "commit_rev":
"acc4214c4dece4e70fb53355d557bd45f35965d6"}

[commit-bot: I haz the power, 2017-01-10 21:12:20]

Description was changed from

==========
Gtk3: Allow theme authors to style Chromium widgets specially

Add a "chromium" CSS class to all widgets, and update the doc to
reflect the change to GTK theme authors.

BUG=132847
R=erg@chromium.org
==========

to

==========
Gtk3: Allow theme authors to style Chromium widgets specially

Add a "chromium" CSS class to all widgets, and update the doc to
reflect the change to GTK theme authors.

BUG=132847
R=erg@chromium.org

Review-Url: https://codereview.chromium.org/2622773004
Cr-Commit-Position: refs/heads/master@{#442685}
Committed:
https://chromium.googlesource.com/chromium/src/+/acc4214c4dece4e70fb53355d557...
==========

[commit-bot: I haz the power, 2017-01-10 21:12:22]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/acc4214c4dece4e70fb53355d557...