[PoC] Reformat all BUILD.gn and *.gni files with new gn.

ui/strings/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("//tools/grit/grit_rule.gni")
 
 # Meta target that includes both ui_strings and app_locale_settings. Most
 # targets want both. You can depend on the individually if you need to.
 group("strings") {
   public_deps = [
+    ":app_locale_settings",
     ":ui_strings",
-    ":app_locale_settings",
   ]
 }
 
 grit("ui_strings") {
   source = "ui_strings.grd"
   use_qualified_include = true
   outputs = [
     "grit/ui_strings.h",
     "ui_strings_am.pak",
     "ui_strings_ar.pak",
@@ skipping 130 matching lines @@
     outputs -= [
       "app_locale_settings_pt-BR.pak",
       "app_locale_settings_es-419.pak",
     ]
     outputs += [
       "app_locale_settings_pt.pak",
       "app_locale_settings_es-MX.pak",
     ]
   }
 }