Run gn format on all BUILD.gn files (gn version 306668)

services/js/test/BUILD.gn

 # Copyright 2014 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")
 
 source_set("js_application_test_base") {
   testonly = true
 
   sources = [
     "js_application_test_base.cc",
     "js_application_test_base.h",
   ]
 
   deps = [
     "//base",
     "//mojo/application",
     "//mojo/application:test_support",
   ]
 }
 
 mojom("echo_service") {
-  sources = [ "echo_service.mojom" ]
+  sources = [
+    "echo_service.mojom",
+  ]
 }
 
 mojom("pingpong_service") {
-  sources = [ "pingpong_service.mojom" ]
+  sources = [
+    "pingpong_service.mojom",
+  ]
 }
-