Added UI focus tracking

client/test/benchmark/Benchmark.gd

@@ -8,12 +8,13 @@ var benchmarks = [
 	"find_child",
 	"get_child",
 	"get_parent",
-	"get_viewport",
 	"get_tree",
 	"get_ticks_msec",
 	"get_ticks_usec",
 	"get_unix_time_from_system",
+	"get_viewport",
 	"get_world_3d",
+	"gui_get_focus_owner",
 	"script_func_call",
 	"create_timer",
 ]
@@ -51,10 +52,6 @@ func _get_parent():
 	for i in range(n):
 		get_parent()
 
-func _get_viewport():
-	for i in range(n):
-		get_viewport()
-
 func _get_tree():
 	for i in range(n):
 		get_tree()
@@ -71,6 +68,16 @@ func _get_unix_time_from_system():
 	for i in range(n):
 		Time.get_unix_time_from_system()
 
+func _gui_get_focus_owner():
+	var vp := get_viewport()
+
+	for i in range(n):
+		vp.gui_get_focus_owner()
+
+func _get_viewport():
+	for i in range(n):
+		get_viewport()
+
 func _get_world_3d():
 	for i in range(n):
 		get_world_3d()