Introduce authentication service.

services/authentication/BUILD.gn

Index: services/authentication/BUILD.gn
diff --git a/services/authentication/BUILD.gn b/services/authentication/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..146942cea445fc5736569299cb7a073308e28f3f
--- /dev/null
+++ b/services/authentication/BUILD.gn
@@ -0,0 +1,33 @@
+# Copyright 2015 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("//mojo/public/tools/bindings/mojom.gni")
+
+if (is_android) {
+  import("//services/android/rules.gni")
+  import("//build/config/android/config.gni")
+
+  mojo_android_java_application("authentication") {
+    sources = [
+      "src/org/chromium/mojo/authentication/AuthenticationApp.java",
+      "src/org/chromium/mojo/authentication/AuthenticationServiceImpl.java",
+    ]
+
+    mojo_main = "org.chromium.mojo.authentication.AuthenticationApp"
+
+    deps = [
+      ":bindings_java",
+      "//mojo/public/interfaces/application:application_java",
+      "//mojo/public/java:application",
+      "//services/android:bindings_java",
+      "//third_party/android_tools:google_play_services_default_java",
+    ]
+  }
+}
+
+mojom("bindings") {
+  sources = [
+    "authentication.mojom",
+  ]
+}