Get mojo_shell building inside chromium checkout.

mojo/services/kiosk_wm/BUILD.gn

+# 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("//third_party/mojo/src/mojo/public/mojo_application.gni")
+import("$mojo_sdk_root/mojo/public/tools/bindings/mojom.gni")
+
+mojo_native_application("kiosk_wm") {
+  sources = [
+    "kiosk_wm.cc",
+    "kiosk_wm.h",
+    "main.cc",
+    "merged_service_provider.cc",
+    "merged_service_provider.h",
+    "navigator_host_impl.cc",
+    "navigator_host_impl.h",
+  ]
+
+  deps = [
+    "//base",
+    "//mojo/application",
+    "//mojo/common:common",
+    "//mojo/converters/geometry",
+    "//mojo/converters/input_events",
+    "//third_party/mojo/src/mojo/public/cpp/bindings",
+    "//third_party/mojo/src/mojo/public/cpp/utility",
+    "//third_party/mojo/src/mojo/public/interfaces/application",
+    "//third_party/mojo_services/src/input_events/public/interfaces",
+    "//third_party/mojo_services/src/navigation/public/interfaces",
+    "//third_party/mojo_services/src/view_manager/public/cpp",
+    "//mojo/services/window_manager:lib",
+    "//ui/base",
+  ]
+}