shell: Add touch support to ResizeSurfaceGrab

Seems to work well with GTK.

src/shell/layout/floating/mod.rs

@@ -16,7 +16,7 @@ use smithay::{
         ImportAll, ImportMem, Renderer,
     },
     desktop::{layer_map_for_output, space::SpaceElement, PopupKind, Space, WindowSurfaceType},
-    input::{pointer::GrabStartData as PointerGrabStartData, Seat},
+    input::Seat,
     output::Output,
     utils::{IsAlive, Logical, Point, Rectangle, Scale, Size},
     wayland::seat::WaylandFocus,
@@ -35,7 +35,7 @@ use crate::{
             target::{KeyboardFocusTarget, PointerFocusTarget},
             FocusStackMut,
         },
-        grabs::{ReleaseMode, ResizeEdge},
+        grabs::{GrabStartData, ReleaseMode, ResizeEdge},
         CosmicSurface, Direction, ManagedLayer, MoveResult, ResizeDirection, ResizeMode,
     },
     state::State,
@@ -739,7 +739,7 @@ impl FloatingLayout {
         &mut self,
         mapped: &CosmicMapped,
         seat: &Seat<State>,
-        start_data: PointerGrabStartData<State>,
+        start_data: GrabStartData,
         edges: ResizeEdge,
         release: ReleaseMode,
     ) -> Option<ResizeSurfaceGrab> {