Mac x86_64: package nacl_irt_x86_64.nexe

chrome/chrome_dll_bundle.gypi

 # Copyright (c) 2012 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 file contains resources for the main Mac chromium bundle.
 {
   # The main browser executable's name is <(mac_product_name).
   # Certain things will get confused if two modules in the
   # executable share the same name, so append " Framework" to the
   # product_name used for the framework.  This will result in
@@ skipping 139 matching lines @@
       'files': [],
       'conditions': [
         ['internal_pdf', {
           'files': [
             '<(PRODUCT_DIR)/PDF.plugin',
           ],
         }],
         ['disable_nacl!=1', {
           'files': [
             '<(PRODUCT_DIR)/ppGoogleNaClPluginChrome.plugin',
-            # We leave out the x86-64 IRT nexe because we only
-            # support x86-32 NaCl on Mac OS X.
-            '<(PRODUCT_DIR)/nacl_irt_x86_32.nexe',
+          ],
+          'conditions': [
+            ['target_arch=="x64"', {
+              'files': [
+                '<(PRODUCT_DIR)/nacl_irt_x86_64.nexe',
+              ],
+            }, {
+              'files': [
+                '<(PRODUCT_DIR)/nacl_irt_x86_32.nexe',
+              ],
+            }],
           ],
         }],
       ],
     },
     {
       'destination': '<(PRODUCT_DIR)/$(CONTENTS_FOLDER_PATH)/Internet Plug-Ins/PepperFlash',
       'files': [],
       'conditions': [
         ['branding == "Chrome"', {
           'files': [
@@ skipping 102 matching lines @@
         ],
       }],
     }],
     ['enable_hidpi==1', {
       'mac_bundle_resources': [
         '<(SHARED_INTERMEDIATE_DIR)/repack/chrome_200_percent.pak',
       ],
     }],
   ],  # conditions
 }