Fix Mac build packaging brokenness from r42357 due to a missing comma in chrome_dll.gypi.

chrome/chrome_dll.gypi

 # Copyright (c) 2009 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 368 matching lines @@
                     'Versions/Current/Libraries',
                     '${BUILT_PRODUCTS_DIR}/${WRAPPER_NAME}/Libraries'
                   ],
                 },
               ],
               'copies': [
                 {
                   'destination': '<(PRODUCT_DIR)/$(CONTENTS_FOLDER_PATH)/Resources',
                   'files': [
                     '<(PRODUCT_DIR)/resources/inspector/',
-                    '<(PRODUCT_DIR)/resources/bookmark_manager/'
+                    '<(PRODUCT_DIR)/resources/bookmark_manager/',
                     '<(PRODUCT_DIR)/resources/net_internals/'
                   ],
                   'conditions': [
                     ['mac_breakpad==1', {
                       'files': [
                         '<(PRODUCT_DIR)/crash_inspector',
                         '<(PRODUCT_DIR)/crash_report_sender.app'
                       ],
                     }],
                   ],
@@ skipping 130 matching lines @@
           'configurations': {
             'Common_Base': {
               'msvs_target_platform': 'x64',
             },
           },
         },  # target chrome_dll
       ],
     }],
   ],
 }