Switch Chrome to dlopen() the Google Chrome Framework.framework.

chrome/chrome.gyp

 # 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.
 {
   'variables': {
     'chromium_code': 1,
 
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
     # the link of the actual chrome (or chromium) executable on
@@ skipping 139 matching lines @@
         {
           'target_name': 'helper_app',
           'type': 'executable',
           'variables': { 'enable_wexit_time_destructors': 1, },
           'product_name': '<(mac_product_name) Helper',
           'mac_bundle': 1,
           'dependencies': [
             'chrome_dll',
             'infoplist_strings_tool',
           ],
+          'defines': [
+            'HELPER_EXECUTABLE'
+          ],
           'sources': [
-            # chrome_exe_main_mac.cc's main() is the entry point for
+            # chrome_exe_main_mac.c's main() is the entry point for
             # the "chrome" (browser app) target.  All it does is jump
             # to chrome_dll's ChromeMain.  This is appropriate for
             # helper processes too, because the logic to discriminate
             # between process types at run time is actually directed
             # by the --type command line argument processed by
-            # ChromeMain.  Sharing chrome_exe_main_mac.cc with the
+            # ChromeMain.  Sharing chrome_exe_main_mac.c with the
             # browser app will suffice for now.
-            'app/chrome_exe_main_mac.cc',
+            'app/chrome_exe_main_mac.c',

[Mark Mentovai, 2015/10/22 23:15:12]

Depend on the version_header target

[Greg K, 2015/10/23 19:12:49]

Done.

             'app/helper-Info.plist',
           ],
           # TODO(mark): Come up with a fancier way to do this.  It should only
           # be necessary to list helper-Info.plist once, not the three times it
           # is listed here.
           'mac_bundle_resources!': [
             'app/helper-Info.plist',
           ],
           # TODO(mark): For now, don't put any resources into this app.  Its
           # resources directory will be a symbolic link to the browser app's
@@ skipping 613 matching lines @@
                   '<(DEPTH)/third_party/kasko'
                 ],
               },
             },
           },
         },
       ],
     }],
   ],  # 'conditions'
 }