/usr/share/gtk-doc/html/ is in libgoocanvas-dev 0.15-1.1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gtk-doc/html/goocanvas/
/usr/share/gtk-doc/html/goocanvas/GooCanvas.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasEllipse.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasEllipseModel.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasGrid.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasGridModel.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasGroup.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasGroupModel.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasImage.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasImageModel.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasItemModelSimple.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasItemSimple.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasPath.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasPathModel.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasPolyline.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasPolylineModel.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasRect.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasRectModel.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasStyle.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasTable.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasTableModel.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasText.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasTextModel.html
/usr/share/gtk-doc/html/goocanvas/GooCanvasWidget.html
/usr/share/gtk-doc/html/goocanvas/ch01.html
/usr/share/gtk-doc/html/goocanvas/ch02.html
/usr/share/gtk-doc/html/goocanvas/ch03.html
/usr/share/gtk-doc/html/goocanvas/ch04.html
/usr/share/gtk-doc/html/goocanvas/ch05.html
/usr/share/gtk-doc/html/goocanvas/goocanvas-GooCanvas-Types.html
/usr/share/gtk-doc/html/goocanvas/goocanvas-architecture.html
/usr/share/gtk-doc/html/goocanvas/goocanvas-coordinates.html
/usr/share/gtk-doc/html/goocanvas/goocanvas-creating-items.html
/usr/share/gtk-doc/html/goocanvas/goocanvas-goocanvasitem.html
/usr/share/gtk-doc/html/goocanvas/goocanvas-goocanvasitemmodel.html
/usr/share/gtk-doc/html/goocanvas/goocanvas-model-view-canvas.html
/usr/share/gtk-doc/html/goocanvas/goocanvas-overview.html
/usr/share/gtk-doc/html/goocanvas/goocanvas-simple-canvas.html
/usr/share/gtk-doc/html/goocanvas/goocanvas-wysiwyg.html
/usr/share/gtk-doc/html/goocanvas/goocanvas.devhelp
/usr/share/gtk-doc/html/goocanvas/goocanvas.devhelp2
/usr/share/gtk-doc/html/goocanvas/home.png
/usr/share/gtk-doc/html/goocanvas/index.html
/usr/share/gtk-doc/html/goocanvas/index.sgml
/usr/share/gtk-doc/html/goocanvas/left.png
/usr/share/gtk-doc/html/goocanvas/right.png
/usr/share/gtk-doc/html/goocanvas/style.css
/usr/share/gtk-doc/html/goocanvas/up.png