Mus Demo: Demonstrate external window mode

services/ui/demo/BUILD.gn

 # Copyright 2016 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("//services/catalog/public/tools/catalog.gni")
 import("//services/service_manager/public/cpp/service.gni")
 import("//services/service_manager/public/service_manifest.gni")
 import("//services/service_manager/public/tools/test/service_test.gni")
 import("//testing/test.gni")
 
 source_set("lib") {
   sources = [
     "mus_demo.cc",
     "mus_demo.h",
+    "mus_demo_external.cc",
+    "mus_demo_external.h",
     "mus_demo_internal.cc",
     "mus_demo_internal.h",
   ]
 
   public_deps = [
     "//services/service_manager/public/cpp:sources",
     "//skia",
   ]
 
   deps = [
     "//base",
     "//mojo/public/cpp/bindings",
     "//services/service_manager/public/cpp",
     "//services/ui/public/cpp",
     "//services/ui/public/cpp:internal",
     "//services/ui/public/interfaces",
     "//ui/aura",
     "//ui/aura_extra",
     "//ui/gfx/geometry",
     "//ui/wm",
   ]
 }
 
+service("mus_demo_external") {
+  sources = [
+    "main_external.cc",
+  ]
+
+  deps = [
+    ":lib",
+  ]
+
+  data_deps = [
+    "//services/ui",
+  ]
+}
+
 service("mus_demo_internal") {
   sources = [
     "main_internal.cc",
   ]
 
   deps = [
     ":lib",
   ]
 
   data_deps = [
     "//services/ui",
   ]
 }
 
+service_manifest("manifest_external") {
+  name = "mus_demo_external"
+  source = "manifest_external.json"
+}
+
 service_manifest("manifest_internal") {
   name = "mus_demo_internal"
   source = "manifest_internal.json"
 }
 
 service_manifest("test_manifest") {
   name = "mus_demo_unittests"
   source = "test_manifest.json"
 }
 
 service_test("mus_demo_unittests") {
   testonly = true
 
   sources = [
     "mus_demo_unittests.cc",
   ]
 
   catalog = ":mus_demo_unittests_catalog"
 
   deps = [
     ":demo",
     "//base",
     "//services/service_manager/public/cpp",
     "//services/service_manager/public/cpp:service_test_support",
     "//services/ui/public/interfaces",
     "//testing/gtest",
   ]
 
   data_deps = [
+    ":mus_demo_external",
     ":mus_demo_internal",
   ]
 }
 
 group("demo") {
   deps = [
+    ":mus_demo_external",
     ":mus_demo_internal",
   ]
 }
 
 catalog("mus_demo_unittests_catalog") {
   embedded_services = [ ":test_manifest" ]
 
   standalone_services = [
+    ":manifest_external",
     ":manifest_internal",
     "//services/ui:manifest",
   ]
 }