Gtk3: Add background class to tooltips

Gtk3: Add background class to tooltips

This CL fixes the tooltip background color on the non-Dark variant of
Adwaita which requires tooltips have the "background" class [1].

Additionally, this CL avoids creating a selector with a GtkWindow
parent class on Gtk 3.20.  This avoids tinting the tooltip with the
window background color if tooltips have transparency (FYI: Chrome
tooltips are opaque, so the alpha will be ignored).

[1] https://github.com/GNOME/gtk/blob/ee3994f715a2f53519f1478d2f08c6548471a8ae/gtk/theme/Adwaita/gtk-contained.css#L4387

BUG=716599
R=erg@chromium.org

Review-Url: https://codereview.chromium.org/2855063002
Cr-Commit-Position: refs/heads/master@{#469165}
Committed: https://chromium.googlesource.com/chromium/src/+/376a670d2f7ec27bedaf8fae558809c0c60c4b49

[Tom (Use chromium acct), 2017-05-03 00:03:10]

The CQ bit was checked by thomasanderson@google.com to run a CQ dry run

[commit-bot: I haz the power, 2017-05-03 00:03:46]

Dry run: 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, 2017-05-03 00:07:30]

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

[commit-bot: I haz the power, 2017-05-03 00:07:31]

Dry run: Try jobs failed on following builders:
  android_cronet on master.tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/android_cron...)
  chromeos_daisy_chromium_compile_only_ng on master.tryserver.chromium.linux
(JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromeos_daisy_...)
  linux_chromium_asan_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  linux_chromium_chromeos_ozone_rel_ng on master.tryserver.chromium.linux
(JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[Tom (Use chromium acct), 2017-05-03 00:09:44]

The CQ bit was checked by thomasanderson@google.com to run a CQ dry run

[commit-bot: I haz the power, 2017-05-03 00:10:08]

Dry run: CQ is trying da patch.

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

[Tom (Use chromium acct), 2017-05-03 00:10:55]

Description was changed from

==========
Gtk3: Add background class to tooltips

This CL fixes the tooltip background color on the non-Dark variant of
Adwaita which requires tooltips have the "background" class [1].

Additionally, this CL avoids creating a selector with a GtkWindow
parent class on Gtk 3.20.  This avoids tinting the tooltip with the
window background color if tooltips have transparency (FYI: Chrome
tooltips are opaque, so the alpha will be ignored).

[1]
https://github.com/GNOME/gtk/blob/master/gtk/theme/Adwaita/gtk-contained.css#...

BUG=716599
R=erg@chromium.org
==========

to

==========
Gtk3: Add background class to tooltips

This CL fixes the tooltip background color on the non-Dark variant of
Adwaita which requires tooltips have the "background" class [1].

Additionally, this CL avoids creating a selector with a GtkWindow
parent class on Gtk 3.20.  This avoids tinting the tooltip with the
window background color if tooltips have transparency (FYI: Chrome
tooltips are opaque, so the alpha will be ignored).

[1]
https://github.com/GNOME/gtk/blob/ee3994f715a2f53519f1478d2f08c6548471a8ae/gt...

BUG=716599
R=erg@chromium.org
==========

[commit-bot: I haz the power, 2017-05-03 00:55:43]

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

[commit-bot: I haz the power, 2017-05-03 00:55:43]

Dry run: This issue passed the CQ dry run.

[Elliot Glaysher, 2017-05-03 17:36:14]

lgtm

[Tom (Use chromium acct), 2017-05-03 22:16:29]

The CQ bit was checked by thomasanderson@google.com

[commit-bot: I haz the power, 2017-05-03 22:17:12]

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, 2017-05-03 22:23:07]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1493849789747590,
"parent_rev": "f79f3091c4a335c5f7d77e7a6d935ee4048d58e0", "commit_rev":
"376a670d2f7ec27bedaf8fae558809c0c60c4b49"}

[commit-bot: I haz the power, 2017-05-03 22:23:17]

Description was changed from

==========
Gtk3: Add background class to tooltips

This CL fixes the tooltip background color on the non-Dark variant of
Adwaita which requires tooltips have the "background" class [1].

Additionally, this CL avoids creating a selector with a GtkWindow
parent class on Gtk 3.20.  This avoids tinting the tooltip with the
window background color if tooltips have transparency (FYI: Chrome
tooltips are opaque, so the alpha will be ignored).

[1]
https://github.com/GNOME/gtk/blob/ee3994f715a2f53519f1478d2f08c6548471a8ae/gt...

BUG=716599
R=erg@chromium.org
==========

to

==========
Gtk3: Add background class to tooltips

This CL fixes the tooltip background color on the non-Dark variant of
Adwaita which requires tooltips have the "background" class [1].

Additionally, this CL avoids creating a selector with a GtkWindow
parent class on Gtk 3.20.  This avoids tinting the tooltip with the
window background color if tooltips have transparency (FYI: Chrome
tooltips are opaque, so the alpha will be ignored).

[1]
https://github.com/GNOME/gtk/blob/ee3994f715a2f53519f1478d2f08c6548471a8ae/gt...

BUG=716599
R=erg@chromium.org

Review-Url: https://codereview.chromium.org/2855063002
Cr-Commit-Position: refs/heads/master@{#469165}
Committed:
https://chromium.googlesource.com/chromium/src/+/376a670d2f7ec27bedaf8fae5588...
==========

[commit-bot: I haz the power, 2017-05-03 22:23:18]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/376a670d2f7ec27bedaf8fae5588...