[base] POSIX File::Unlock() didn't actually unlock file.

base/base.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,
   },
   'includes': [
     '../build/win_precompile.gypi',
@@ skipping 454 matching lines @@
         'debug/debugger_unittest.cc',
         'debug/leak_tracker_unittest.cc',
         'debug/proc_maps_linux_unittest.cc',
         'debug/stack_trace_unittest.cc',
         'debug/task_annotator_unittest.cc',
         'deferred_sequenced_task_runner_unittest.cc',
         'environment_unittest.cc',
         'feature_list_unittest.cc',
         'file_version_info_unittest.cc',
         'files/dir_reader_posix_unittest.cc',
+        'files/file_locking_unittest.cc',
         'files/file_path_unittest.cc',
         'files/file_path_watcher_unittest.cc',
         'files/file_proxy_unittest.cc',
         'files/file_unittest.cc',
         'files/file_util_proxy_unittest.cc',
         'files/file_util_unittest.cc',
         'files/important_file_writer_unittest.cc',
         'files/memory_mapped_file_unittest.cc',
         'files/scoped_temp_dir_unittest.cc',
         'gmock_unittest.cc',
@@ skipping 207 matching lines @@
       },
       'conditions': [
         ['OS == "android"', {
           'dependencies': [
             'android/jni_generator/jni_generator.gyp:jni_generator_tests',
             '../testing/android/native_test.gyp:native_test_native_code',
           ],
         }],
         ['OS == "ios" and _toolset != "host"', {
           'sources/': [
+            # This test needs multiple processes.
+            ['exclude', '^files/file_locking_unittest\\.cc$'],
             # iOS does not support FilePathWatcher.
             ['exclude', '^files/file_path_watcher_unittest\\.cc$'],
             # Only test the iOS-meaningful portion of memory and process_utils.
             ['exclude', '^memory/discardable_shared_memory_unittest\\.cc$'],
             ['exclude', '^memory/shared_memory_unittest\\.cc$'],
             ['exclude', '^process/memory_unittest'],
             ['exclude', '^process/process_unittest\\.cc$'],
             ['exclude', '^process/process_util_unittest\\.cc$'],
             ['include', '^process/process_util_unittest_ios\\.cc$'],
             # iOS does not use message_pump_libevent.
@@ skipping 1004 matching lines @@
             '../build/isolate.gypi',
           ],
           'sources': [
             'base_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }