Move sequenced_task_runner to base/task

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 380 matching lines @@
           'run_loop.cc',
           'run_loop.h',
           'safe_numerics.h',
           'safe_strerror_posix.cc',
           'safe_strerror_posix.h',
           'scoped_native_library.cc',
           'scoped_native_library.h',
           'sequence_checker.h',
           'sequence_checker_impl.cc',
           'sequence_checker_impl.h',
-          'sequenced_task_runner.cc',
-          'sequenced_task_runner.h',
-          'sequenced_task_runner_helpers.h',
           'sha1.h',
           'sha1_portable.cc',
           'sha1_win.cc',
           'single_thread_task_runner.h',
           'stl_util.h',
           'string_util.cc',
           'string_util.h',
           'string_util_posix.h',
           'string_util_win.h',
           'string16.cc',
@@ skipping 44 matching lines @@
           'sys_info.h',
           'sys_info_android.cc',
           'sys_info_chromeos.cc',
           'sys_info_freebsd.cc',
           'sys_info_ios.mm',
           'sys_info_linux.cc',
           'sys_info_mac.cc',
           'sys_info_openbsd.cc',
           'sys_info_posix.cc',
           'sys_info_win.cc',
+          'task/sequenced_task_runner.cc',
+          'task/sequenced_task_runner.h',
+          'task/sequenced_task_runner_helpers.h',
           'task_runner.cc',
           'task_runner.h',
           'task_runner_util.h',
           'template_util.h',
           'thread_task_runner_handle.cc',
           'thread_task_runner_handle.h',
           'threading/non_thread_safe.h',
           'threading/non_thread_safe_impl.cc',
           'threading/non_thread_safe_impl.h',
           'threading/platform_thread.h',
@@ skipping 302 matching lines @@
           ['<(use_system_nspr)==1 and >(nacl_untrusted_build)==0', {
             'sources/': [
               ['exclude', '^third_party/nspr/'],
             ],
           }],
         ],
       }],
     ],
   },
 }