Convert Mojo tests to use swarming.

services/catalog/BUILD.gn

 # Copyright 2016 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/mojo_application.gni")
 import("//mojo/public/mojo_application_manifest.gni")
 import("//testing/test.gni")
 
 group("catalog") {
   testonly = true
@@ skipping 34 matching lines @@
 mojo_application_manifest("manifest") {
   application_name = "catalog"
   source = "manifest.json"
 }
 
 source_set("unittests") {
   testonly = true
   sources = [
     "entry_unittest.cc",
   ]
+  data = [
+    "//services/catalog/data/",
+  ]
   deps = [
     ":lib",
     "//base",
     "//services/shell/public/cpp",
     "//testing/gtest",
   ]
 }