NaCl: Add the integrated runtime (IRT) library to Windows install images

chrome/tools/build/win/FILES.cfg

 # -*- python -*-
 # ex: set syntax=python:
 
 # Copyright (c) 2010 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.
 
 # This is a buildbot configuration file containing a tagged list of files
 # processed by the stage/archive scripts. The known tags are:
 #
@@ skipping 345 matching lines @@
   {
     'filename': 'libEGL.dll',
     'arch': ['32bit', '64bit'],
     'buildtype': ['dev', 'official'],
   },
   {
     'filename': 'libGLESv2.dll',
     'arch': ['32bit', '64bit'],
     'buildtype': ['dev', 'official'],
   },
+  # Native Client plugin files:
   {
     'filename': 'ppGoogleNaClPluginChrome.dll',
     'arch': ['32bit', '64bit'],
     'buildtype': ['dev', 'official'],
   },
+  # Windows Chrome does not have separate x86-32 and x86-64 installs.
+  # A single install supports both x86-32 and x86-64 versions of NaCl,
+  # so the 'arch' field does not seem to make much sense in this case.
+  {
+    'filename': 'nacl_irt_x86_32.nexe',
+    'arch': ['32bit', '64bit'],
+    'buildtype': ['dev', 'official'],
+  },
+  {
+    'filename': 'nacl_irt_x86_64.nexe',
+    'arch': ['32bit', '64bit'],
+    'buildtype': ['dev', 'official'],
+  },
 ]