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

mojo/environment/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.
 
 # GYP version: mojo_base.gyp:mojo_environment_chromium
 source_set("chromium") {
   output_name = "mojo_environment_chromium"
 
   sources = [
     "environment.cc",
+
     # TODO(vtl): This is kind of ugly. (See TODO in logging.h.)
     "../public/cpp/environment/async_waiter.h",
     "../public/cpp/environment/lib/async_waiter.cc",
     "../public/cpp/environment/logging.h",
     "../public/cpp/environment/lib/logging.cc",
   ]
 
   public_deps = [
     ":chromium_impl",
   ]
@@ skipping 13 matching lines @@
 
   sources = [
     "default_async_waiter_impl.cc",
     "default_async_waiter_impl.h",
     "default_logger_impl.cc",
     "default_logger_impl.h",
     "default_run_loop_impl.cc",
     "default_run_loop_impl.h",
   ]
 
-  defines = [
-    "MOJO_ENVIRONMENT_IMPL_IMPLEMENTATION",
-  ]
+  defines = [ "MOJO_ENVIRONMENT_IMPL_IMPLEMENTATION" ]
 
   deps = [
     "//base",
     "//base/third_party/dynamic_annotations",
     "//mojo/common",
     "//mojo/public/c/environment",
   ]
 }