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

chrome/tools/build/win/FILES.cfg

Index: chrome/tools/build/win/FILES.cfg
diff --git a/chrome/tools/build/win/FILES.cfg b/chrome/tools/build/win/FILES.cfg
index 8d9a0251149429b25654b442b950078d9da415a8..5736c14ea019884aa2465bf10cf534718acc3bb3 100644
--- a/chrome/tools/build/win/FILES.cfg
+++ b/chrome/tools/build/win/FILES.cfg
@@ -363,9 +363,23 @@ FILES = [
     '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'],
+  },
 ]