It is time.

examples/aura_demo/BUILD.gn

Index: examples/aura_demo/BUILD.gn
diff --git a/examples/aura_demo/BUILD.gn b/examples/aura_demo/BUILD.gn
deleted file mode 100644
index 5a8d52fd773e8b36a156a3c28cf7d4271770a4c1..0000000000000000000000000000000000000000
--- a/examples/aura_demo/BUILD.gn
+++ /dev/null
@@ -1,52 +0,0 @@
-# Copyright 2014 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import("//build/config/ui.gni")
-import("//mojo/public/mojo_application.gni")
-
-assert(use_aura)
-
-mojo_native_application("aura_demo") {
-  sources = [
-    "aura_demo.cc",
-  ]
-
-  deps = [
-    "//base",
-    "//cc",
-    "//ui/aura",
-    "//ui/base",
-    "//ui/compositor",
-    "//ui/gfx",
-    "//ui/gfx/geometry",
-    "//mojo/application",
-    "//mojo/common",
-    "//mojo/converters/geometry",
-    "//mojo/aura",
-    "//mojo/public/cpp/system",
-    "//mojo/services/geometry/public/interfaces",
-    "//mojo/services/native_viewport/public/interfaces",
-    "//mojo/services/view_manager/public/cpp",
-  ]
-
-  datadeps = [
-    ":init",
-  ]
-}
-
-mojo_native_application("init") {
-  output_name = "aura_demo_init"
-
-  sources = [
-    "view_manager_init.cc",
-  ]
-
-  deps = [
-    "//base",
-    "//mojo/application",
-    "//mojo/public/interfaces/application",
-    "//mojo/services/view_manager/public/cpp",
-    "//mojo/services/view_manager/public/interfaces",
-  ]
-}