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

remoting/tools/javascript_key_tester/pnacl/BUILD.gn

 # Copyright 2015 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.
 
 assert(is_nacl,
        "These targets must only be built using the untrusted NaCl toolchains.")
 
 executable("remoting_key_tester_newlib") {
   sources = [
     "remoting_key_tester.cc",
   ]
 
   deps = [
     "//build/config/sanitizers:deps",
+    "//ppapi/cpp",
     "//ppapi/native_client:ppapi_lib",
-    "//ppapi/cpp",
   ]
 }