protocol: wl_data_device.start_drag may give a role

Now that we have defined "role", use the term.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>

diff --git a/protocol/wayland.xml b/protocol/wayland.xml
index 89f7c0e..71293dd 100644 (file)
--- a/protocol/wayland.xml
+++ b/protocol/wayland.xml
@@ -545,7 +545,8 @@
        the top-left corner of the icon surface is placed at the cursor
        hotspot, but subsequent wl_surface.attach request can move the
        relative position. Attach requests must be confirmed with
-       wl_surface.commit as usual.
+       wl_surface.commit as usual. The icon surface is given the role of
+       a drag-and-drop icon.
 
        The current and pending input regions of the icon wl_surface are
        cleared, and wl_surface.set_input_region is ignored until the