nautilus context menu windows use different window deco than nautilus

[Doug McMahon]

nautilus is using that unfortunate csd/GtkHeaderBar but none of the context menu pop ups do. They remain on unity window deco
(where nautilus belongs..

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: nautilus 1:3.18.2-1ubuntu2
ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
Uname: Linux 4.2.0-19-generic x86_64
ApportVersion: 2.19.2-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Dec 4 20:07:57 2015
GsettingsChanges:
 b'org.gnome.nautilus.list-view' b'default-visible-columns' b"['name', 'size', 'type']"
 b'org.gnome.nautilus.list-view' b'default-zoom-level' b"'small'"
 b'org.gnome.nautilus.list-view' b'use-tree-view' b'true'
 b'org.gnome.nautilus.list-view' b'default-column-order' b"['name', 'size', 'type', 'date_modified', 'date_accessed', 'owner', 'group', 'permissions', 'mime_type', 'where', 'date_modified_with_time']"
InstallationDate: Installed on 2015-10-25 (40 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: nautilus
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sebastien Bacher (seb128)]

Thanks, indeed those are GTK dialogs and we don't turn on the CSD mode for Gtk on Unity. It's somewhat a duplicate of bug #1523018 though, they have the same solution at least (making nautilus use normal decorations)