apps: update go latest gioui.org/ui version

Signed-off-by: Elias Naur <mail@eliasnaur.com>

apps/go.mod

@@ -3,7 +3,7 @@ module gioui.org/apps
 go 1.12
 
 require (
-	gioui.org/ui v0.0.0-20190814083508-56926a044990
+	gioui.org/ui v0.0.0-20190821125935-6a7e38eb329f
 	github.com/google/go-github/v24 v24.0.1
 	golang.org/x/exp v0.0.0-20190627132806-fd42eb6b336f
 	golang.org/x/image v0.0.0-20190703141733-d6a02ce849c9

apps/gophers/main.go

@@ -54,11 +54,11 @@ func main() {
 		fmt.Println("See https://help.github.com/en/articles/creating-a-personal-access-token-for-the-command-line.")
 	}
 	go func() {
-		w := app.NewWindow(&app.WindowOptions{
-			Width:  ui.Dp(400),
-			Height: ui.Dp(800),
-			Title:  "Gophers",
-		})
+		w := app.NewWindow(
+			app.WithWidth(ui.Dp(400)),
+			app.WithHeight(ui.Dp(800)),
+			app.WithTitle("Gophers"),
+		)
 		if err := newApp(w).run(); err != nil {
 			log.Fatal(err)
 		}

apps/hello/hello.go

@@ -21,7 +21,7 @@ import (
 
 func main() {
 	go func() {
-		w := app.NewWindow(nil)
+		w := app.NewWindow()
 		if err := loop(w); err != nil {
 			log.Fatal(err)
 		}