/usr/share/gtk-doc/ is in glade 3.18.3-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gtk-doc/html/
/usr/share/gtk-doc/html/gladeui-2/
/usr/share/gtk-doc/html/gladeui-2/GladeApp.html
/usr/share/gtk-doc/html/gladeui-2/GladeBaseEditor.html
/usr/share/gtk-doc/html/gladeui-2/GladeClipboard.html
/usr/share/gtk-doc/html/gladeui-2/GladeDesignView.html
/usr/share/gtk-doc/html/gladeui-2/GladeEditorProperty.html
/usr/share/gtk-doc/html/gladeui-2/GladeInspector.html
/usr/share/gtk-doc/html/gladeui-2/GladePalette.html
/usr/share/gtk-doc/html/gladeui-2/GladePlaceholder.html
/usr/share/gtk-doc/html/gladeui-2/GladeProject.html
/usr/share/gtk-doc/html/gladeui-2/GladeProperty.html
/usr/share/gtk-doc/html/gladeui-2/GladeWidget.html
/usr/share/gtk-doc/html/gladeui-2/GladeWidgetAction.html
/usr/share/gtk-doc/html/gladeui-2/catalog.html
/usr/share/gtk-doc/html/gladeui-2/catalogintro.html
/usr/share/gtk-doc/html/gladeui-2/core.html
/usr/share/gtk-doc/html/gladeui-2/dockables.html
/usr/share/gtk-doc/html/gladeui-2/gladeui-2.devhelp2
/usr/share/gtk-doc/html/gladeui-2/gladeui-Glade-Utils.html
/usr/share/gtk-doc/html/gladeui-2/gladeui-GladeClipboardView.html
/usr/share/gtk-doc/html/gladeui-2/gladeui-GladeFixed.html
/usr/share/gtk-doc/html/gladeui-2/gladeui-GladePropertyClass.html
/usr/share/gtk-doc/html/gladeui-2/gladeui-GladeSignalEditor.html
/usr/share/gtk-doc/html/gladeui-2/gladeui-Xml-Utils.html
/usr/share/gtk-doc/html/gladeui-2/gladeui-glade-command.html
/usr/share/gtk-doc/html/gladeui-2/gladeui-glade-editor.html
/usr/share/gtk-doc/html/gladeui-2/gladeui-glade-parameter.html
/usr/share/gtk-doc/html/gladeui-2/gladeui-glade-widget-adaptor.html
/usr/share/gtk-doc/html/gladeui-2/home.png
/usr/share/gtk-doc/html/gladeui-2/index.html
/usr/share/gtk-doc/html/gladeui-2/index.sgml
/usr/share/gtk-doc/html/gladeui-2/ix01.html
/usr/share/gtk-doc/html/gladeui-2/left-insensitive.png
/usr/share/gtk-doc/html/gladeui-2/left.png
/usr/share/gtk-doc/html/gladeui-2/misc.html
/usr/share/gtk-doc/html/gladeui-2/properties.html
/usr/share/gtk-doc/html/gladeui-2/pythonsupport.html
/usr/share/gtk-doc/html/gladeui-2/right-insensitive.png
/usr/share/gtk-doc/html/gladeui-2/right.png
/usr/share/gtk-doc/html/gladeui-2/style.css
/usr/share/gtk-doc/html/gladeui-2/up-insensitive.png
/usr/share/gtk-doc/html/gladeui-2/up.png
/usr/share/gtk-doc/html/gladeui-2/widgetclasses.html