[Service Manager] Get rid of dynamic service discovery

services/ui/ime/BUILD.gn

Index: services/ui/ime/BUILD.gn
diff --git a/services/ui/ime/BUILD.gn b/services/ui/ime/BUILD.gn
index c072a23d7f6e3fe9b2115332a1987d338706433f..b19a0a986829b48be870e2f08c84134e46aa9845 100644
--- a/services/ui/ime/BUILD.gn
+++ b/services/ui/ime/BUILD.gn
@@ -2,6 +2,7 @@
 # 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("//testing/test.gni")
@@ -34,20 +35,23 @@ group("tests") {
 test("mus_ime_unittests") {
   sources = [
     "ime_unittest.cc",
+    "run_all_unittests.cc",
   ]
 
   deps = [
     "//base",
+    "//base/test:test_support",
     "//mojo/common",
+    "//mojo/edk/system",
+    "//services/catalog:lib",
     "//services/service_manager/public/cpp:service_test_support",
     "//services/service_manager/public/cpp:sources",
-    "//services/service_manager/public/cpp/test:run_all_service_tests",
     "//services/ui/public/interfaces",
   ]
 
   data_deps = [
-    ":test_manifest",
     ":lib",
+    ":mus_ime_unittests_catalog_copy",
     "//services/ui",
     "//services/ui/ime/test_ime_driver",
   ]
@@ -57,3 +61,21 @@ service_manifest("test_manifest") {
   name = "mus_ime_unittests"
   source = "test_manifest.json"
 }
+
+catalog("mus_ime_unittests_catalog") {
+  embedded_services = [ ":test_manifest" ]
+  standalone_services = [
+    "//services/ui:manifest",
+    "//services/ui/ime/test_ime_driver:manifest",
+  ]
+}
+
+copy("mus_ime_unittests_catalog_copy") {
+  sources = get_target_outputs(":mus_ime_unittests_catalog")
+  outputs = [
+    "${root_out_dir}/mus_ime_unittests_catalog.json",
+  ]
+  deps = [
+    ":mus_ime_unittests_catalog",
+  ]
+}