Rename mojo_application GN templates to service*

services/user/BUILD.gn

Index: services/user/BUILD.gn
diff --git a/services/user/BUILD.gn b/services/user/BUILD.gn
index 7f1d5c2c1d5c99fe283a61819f1b0a2d5a7b958b..6cc30861b6723b81954ae2f5cc1e7875b0e8e267 100644
--- a/services/user/BUILD.gn
+++ b/services/user/BUILD.gn
@@ -2,8 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import("//mojo/public/mojo_application.gni")
-import("//mojo/public/mojo_application_manifest.gni")
+import("//services/shell/public/cpp/service.gni")
+import("//services/shell/public/service_manifest.gni")
 
 source_set("lib") {
   sources = [
@@ -35,7 +35,7 @@ source_set("lib") {
   ]
 }
 
-mojo_application_manifest("manifest") {
-  application_name = "user"
+service_manifest("manifest") {
+  name = "user"
   source = "manifest.json"
 }