window: let menu and tooltip redraw use widget size

Menu and tooltip redraw functions were using the surface size directly.
For consistency, make them use the widget size instead, it is the same.

Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>

clients/window.c

@@ -1537,15 +1537,14 @@ tooltip_redraw_handler(struct widget *widget, void *data)
 	const int32_t r = 3;
 	struct tooltip *tooltip = data;
 	int32_t width, height;
-	struct surface *surface = widget->surface;
 
-	cr = cairo_create(surface->cairo_surface);
+	cr = cairo_create(widget->surface->cairo_surface);
 	cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
 	cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
 	cairo_paint(cr);
 
-	width = surface->allocation.width;
-	height = surface->allocation.height;
+	width = widget->allocation.width;
+	height = widget->allocation.height;
 	rounded_rect(cr, 0, 0, width, height, r);
 
 	cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
@@ -3757,15 +3756,14 @@ menu_redraw_handler(struct widget *widget, void *data)
 	const int32_t r = 3, margin = 3;
 	struct menu *menu = data;
 	int32_t width, height, i;
-	struct surface *surface = widget->surface;
 
-	cr = cairo_create(surface->cairo_surface);
+	cr = cairo_create(widget->surface->cairo_surface);
 	cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
 	cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
 	cairo_paint(cr);
 
-	width = surface->allocation.width;
-	height = surface->allocation.height;
+	width = widget->allocation.width;
+	height = widget->allocation.height;
 	rounded_rect(cr, 0, 0, width, height, r);
 
 	cairo_set_operator(cr, CAIRO_OPERATOR_OVER);