Use C++11 atomics

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,
       'base_i18n_target': 0,
     },
@@ skipping 61 matching lines @@
           'android/sys_utils.cc',
           'android/sys_utils.h',
           'android/thread_utils.h',
           'android/trace_event_binding.cc',
           'android/trace_event_binding.h',
           'at_exit.cc',
           'at_exit.h',
           'atomic_ref_count.h',
           'atomic_sequence_num.h',
           'atomicops.h',
-          'atomicops_internals_gcc.h',
-          'atomicops_internals_mac.h',
-          'atomicops_internals_tsan.h',
-          'atomicops_internals_x86_gcc.cc',
-          'atomicops_internals_x86_gcc.h',
-          'atomicops_internals_x86_msvc.h',
+          'atomicops_internals_portable.h',
           'barrier_closure.cc',
           'barrier_closure.h',
           'base64.cc',
           'base64.h',
           'base_export.h',
           'base_paths.cc',
           'base_paths.h',
           'base_paths_android.cc',
           'base_paths_android.h',
           'base_paths_mac.h',
@@ skipping 633 matching lines @@
           '..',
         ],
         'msvs_disabled_warnings': [
           4018,
         ],
         'target_conditions': [
           ['(<(desktop_linux) == 0 and <(chromeos) == 0) or >(nacl_untrusted_build)==1', {
               'sources/': [
                 ['exclude', '^nix/'],
               ],
-              'sources!': [
-                'atomicops_internals_x86_gcc.cc',
-              ],
           }],
           ['<(use_glib)==0 or >(nacl_untrusted_build)==1', {
               'sources!': [
                 'message_loop/message_pump_glib.cc',
               ],
           }],
           ['(OS != "linux" and <(os_bsd) != 1 and OS != "android") or >(nacl_untrusted_build)==1', {
               'sources!': [
                 # Not automatically excluded by the *linux.cc rules.
                 'linux_util.cc',
@@ skipping 66 matching lines @@
               ['include', '^sys_info_linux\\.cc$'],
               ['include', '^worker_pool_linux\\.cc$'],
             ],
           }],
           ['OS == "android" and _toolset == "host" and host_os == "linux"', {
             'defines': [
               'OS_ANDROID_HOST=Linux',
             ],
             'sources/': [
               # Pull in specific files for host builds.
-              ['include', '^atomicops_internals_x86_gcc\\.cc$'],
               ['include', '^threading/platform_thread_linux\\.cc$'],
             ],
           }],
           ['OS == "android" and <(android_webview_build)==1', {
             'defines': [
                # WebView builds as part of the system which already has sincos;
                # avoid defining it again as it causes a linker warning.
                'ANDROID_SINCOS_PROVIDED',
             ],
           }],
           ['OS == "ios" and _toolset != "host"', {
             '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', '^files/file_util_mac\\.'],
               ['include', '^file_version_info_mac\\.'],
               ['include', '^mac/bundle_locations\\.'],
               ['include', '^mac/foundation_util\\.'],
               ['include', '^mac/mac_logging\\.'],
               ['include', '^mac/mach_logging\\.'],
               ['include', '^mac/objc_property_releaser\\.'],
               ['include', '^mac/scoped_mach_port\\.'],
               ['include', '^mac/scoped_mach_vm\\.'],
@@ skipping 142 matching lines @@
           'i18n/time_formatting.h',
           'i18n/timezone.cc',
           'i18n/timezone.h',
           'i18n/utf8_validator_tables.cc',
           'i18n/utf8_validator_tables.h',
         ],
       }]
     ],
   },
 }