Rename mojo_application GN templates to service*

services/shell/BUILD.gn

Index: services/shell/BUILD.gn
diff --git a/services/shell/BUILD.gn b/services/shell/BUILD.gn
index 547c4a927641d89f0cf147eec55891ac319b3500..726e58785612e52518b3120ba46368046b97d115 100644
--- a/services/shell/BUILD.gn
+++ b/services/shell/BUILD.gn
@@ -2,7 +2,7 @@
 # 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_manifest.gni")
+import("//services/shell/public/service_manifest.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//testing/test.gni")
 
@@ -52,7 +52,7 @@ source_set("shell") {
   ]
 }
 
-mojo_application_manifest("manifest") {
-  application_name = "shell"
+service_manifest("manifest") {
+  name = "shell"
   source = "manifest.json"
 }