Replace commit/ack/frame protocol with simpler sync and frame callbacks
diff --git a/clients/window.h b/clients/window.h
index 1b4285f..343d536 100644
--- a/clients/window.h
+++ b/clients/window.h
@@ -38,6 +38,9 @@
 struct display *
 display_create(int *argc, char **argv[], const GOptionEntry *option_entries);
 
+struct wl_display *
+display_get_display(struct display *display);
+
 struct wl_compositor *
 display_get_compositor(struct display *display);
 
@@ -96,7 +99,6 @@
 typedef void (*window_resize_handler_t)(struct window *window, void *data);
 typedef void (*window_redraw_handler_t)(struct window *window, void *data);
 typedef void (*window_frame_handler_t)(struct window *window, uint32_t frame, uint32_t timestamp, void *data);
-typedef void (*window_acknowledge_handler_t)(struct window *window, uint32_t key, uint32_t frame, void *data);
 typedef void (*window_key_handler_t)(struct window *window, uint32_t key, uint32_t unicode,
 				     uint32_t state, uint32_t modifiers, void *data);
 typedef void (*window_keyboard_focus_handler_t)(struct window *window,
@@ -121,8 +123,6 @@
 void
 window_draw(struct window *window);
 void
-window_commit(struct window *window, uint32_t key);
-void
 window_get_child_rectangle(struct window *window,
 			   struct rectangle *rectangle);
 void
@@ -147,6 +147,9 @@
 		    cairo_surface_t *surface);
 
 void
+window_flush(struct window *window);
+
+void
 window_set_fullscreen(struct window *window, int fullscreen);
 
 void
@@ -168,9 +171,6 @@
 void
 window_set_frame_handler(struct window *window,
 			 window_frame_handler_t handler);
-void
-window_set_acknowledge_handler(struct window *window,
-			       window_acknowledge_handler_t handler);
 
 void
 window_set_key_handler(struct window *window,
@@ -189,10 +189,6 @@
 				  window_keyboard_focus_handler_t handler);
 
 void
-window_set_acknowledge_handler(struct window *window,
-			       window_acknowledge_handler_t handler);
-
-void
 window_set_frame_handler(struct window *window,
 			 window_frame_handler_t handler);