wl_shell: Don't require that parent surfaces are wl_shell_surfaces

The set_transient and set_popup requests take a wl_shell_surface as
the parent surface argument.  We don't need the parent surface to be
a shell surface and this restricts the types of surfaces we can use
the transient and popup surface types on.

diff --git a/protocol/wayland.xml b/protocol/wayland.xml
index 23b244f..fba5947 100644 (file)
--- a/protocol/wayland.xml
+++ b/protocol/wayland.xml
@@ -474,7 +474,7 @@
        that relative position during moves.
       </description>
 
-      <arg name="parent" type="object" interface="wl_shell_surface"/>
+      <arg name="parent" type="object" interface="wl_surface"/>
       <arg name="x" type="int"/>
       <arg name="y" type="int"/>
       <arg name="flags" type="uint"/>
@@ -549,7 +549,7 @@
 
       <arg name="seat" type="object" interface="wl_seat"/>
       <arg name="serial" type="uint"/>
-      <arg name="parent" type="object" interface="wl_shell_surface"/>
+      <arg name="parent" type="object" interface="wl_surface"/>
       <arg name="x" type="int"/>
       <arg name="y" type="int"/>
       <arg name="flags" type="uint"/>