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

chrome/chrome_dll.gypi

 # 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.
 {
   'target_defaults': {
     'variables': {
       'chrome_dll_target': 0,
     },
     'target_conditions': [
       ['chrome_dll_target==1', {
@@ skipping 459 matching lines @@
                       ],
                     }],
                     ['internal_pdf', {
                       'files': [
                         '<(PRODUCT_DIR)/PDF.plugin',
                       ],
                     }],
                     ['disable_nacl!=1', {
                       'files': [
                         '<(PRODUCT_DIR)/ppGoogleNaClPluginChrome.plugin',
+                        # We leave out nacl_irt_x86_64.nexe because we only
+                        # support x86-32 NaCl on Mac OS X.
+                        '<(PRODUCT_DIR)/nacl_irt_x86_32.nexe',
                       ],
                     }],
                   ],
                 },
                 {
                   'destination': '<(PRODUCT_DIR)',
                   'files': [
                       '<(INTERMEDIATE_DIR)/repack/resources.pak'
                   ],
                 },
@@ skipping 153 matching lines @@
                   'LinkIncremental': '<(msvs_debug_link_nonincremental)',
                 },
               },
             },
           },
         },  # target chrome_dll
       ],
     }],
   ],
 }