Add chrome perf tests and sniffer to GN build.

remoting/resources/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")
 
 # See also remoting_locales_with_underscores below.
 remoting_locales = [
   "am",
   "ar",
@@ skipping 144 matching lines @@
 
   outputs = [
     "remoting/base/string_resources.h",
   ]
 
   # The grd produces a *.pak file and a messages.json file (this one uses
   # underscores instead of hyphens) for each locale.
   outputs += process_file_template(
       remoting_locales,
       [ "remoting/resources/{{source_name_part}}.pak" ])
+
+  messages_locales = remoting_locales_with_underscores
+  if (!is_chromeos) {
+    # The messages output includes a separate one for en-US that the pak ones
+    # don't have. We don't need to do this on ChromeOS since en_US is in the
+    # locales list be default there.
+    messages_locales += [ "en_US" ]
+  }
   outputs += process_file_template(
-      remoting_locales_with_underscores,
+      messages_locales,
       [ "remoting/webapp/_locales/{{source_name_part}}/messages.json" ])
 }
 
 action("copy_locales") {
   script = "../tools/build/remoting_copy_locales.py"
 
   # The gyp build calls out to Python, but the Python just computes a simple
   # replacement over the locales. Here, we can do this in GN script by
   # pretending the locale list is a list of files. The {{source_name_part}}
   # will just expand to the locale name.
@@ skipping 15 matching lines @@
   }
 
   args = [
     "-p", os,
     "-g", rebase_path(root_gen_dir, root_build_dir),
     "-x", rebase_path(root_out_dir, root_build_dir),
   ] + remoting_locales
 
   deps = [ ":strings" ]
 }