Adding the possibility to build a closure from an ObjectiveC block.

base/base.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.
 
 {
   'target_defaults': {
     'variables': {
       'base_target': 0,
     },
     'target_conditions': [
@@ skipping 155 matching lines @@
           'lazy_instance.h',
           'linked_list.h',
           'location.cc',
           'location.h',
           'logging.cc',
           'logging.h',
           'logging_win.cc',
           'logging_win.h',
           'mac/authorization_util.h',
           'mac/authorization_util.mm',
+          'mac/bind_objc_block.h',
+          'mac/bind_objc_block.mm',
           'mac/bundle_locations.h',
           'mac/bundle_locations.mm',
           'mac/cocoa_protocols.h',
           'mac/crash_logging.h',
           'mac/crash_logging.mm',
           'mac/foundation_util.h',
           'mac/foundation_util.mm',
           'mac/launchd.cc',
           'mac/launchd.h',
           'mac/mac_logging.h',
@@ skipping 378 matching lines @@
             ],
           }],
           ['OS == "ios"', {
             'sources/': [
               # Pull in specific Mac files for iOS (which have been filtered out
               # by file name rules).
               ['include', '^atomicops_internals_mac\\.'],
               ['include', '^base_paths_mac\\.'],
               ['include', '^file_util_mac\\.'],
               ['include', '^file_version_info_mac\\.'],
+              ['include', '^mac/bind_objc_block\\.'],
               ['include', '^mac/bundle_locations\\.'],
               ['include', '^mac/foundation_util\\.'],
               ['include', '^mac/mac_logging\\.'],
               ['include', '^mac/objc_property_releaser\\.'],
               ['include', '^mac/scoped_nsautorelease_pool\\.'],
               ['include', '^message_pump_mac\\.'],
               ['include', '^threading/platform_thread_mac\\.'],
               ['include', '^sys_string_conversions_mac\\.'],
               ['include', '^time_mac\\.'],
               ['include', '^worker_pool_mac\\.'],
@@ skipping 74 matching lines @@
           # Remove all unnecessary files for build_nexe.py to avoid exceeding
           # command-line-string limitation when building NaCl on Windows.
           ['OS == "win" and >(nacl_untrusted_build)==1', {
               'sources/': [ ['exclude', '\\.h$'] ],
           }],
         ],
       }],
     ],
   },
 }