Add test for multithreaded ActiveVerifier behavior.

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 681 matching lines @@
         }],
         [ 'OS == "win" and target_arch == "x64"', {
           'sources': [
             'profiler/win32_stack_frame_unwinder_unittest.cc',
           ],
           'dependencies': [
             'base_profiler_test_support_library',
           ],
         }],
         ['OS == "win"', {
+          'dependencies': [
+            'scoped_handle_test_dll'
+          ],
           'sources!': [
             'file_descriptor_shuffle_unittest.cc',
             'files/dir_reader_posix_unittest.cc',
             'message_loop/message_pump_libevent_unittest.cc',
             'threading/worker_pool_posix_unittest.cc',
           ],
           # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
           'msvs_disabled_warnings': [
             4267,
           ],
@@ skipping 958 matching lines @@
                 'cfgmgr32.dll',
                 'shell32.dll',
               ],
               'AdditionalDependencies': [
                 'cfgmgr32.lib',
                 'shell32.lib',
               ],
             },
           },
         },
+        {
+          'target_name': 'scoped_handle_test_dll',
+          'type': 'shared_library',
+          'dependencies': [
+            'base',
+          ],
+          'sources': [
+            'win/scoped_handle_test_dll.cc',
+            'win/scoped_handle_test_dll.h',
+          ],
+        },
       ],
     }],
     ['test_isolation_mode != "noop"', {
       'targets': [
         {
           'target_name': 'base_unittests_run',
           'type': 'none',
           'dependencies': [
             'base_unittests',
           ],
           'includes': [
             '../build/isolate.gypi',
           ],
           'sources': [
             'base_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }