Re-enable sandboxing on the Clang ASan Windows bots +tests

testing/test_env.py

 #!/usr/bin/env python
 # 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.
 
 """Sets environment variables needed to run a chromium unit test."""
 
 import os
 import stat
 import subprocess
@@ skipping 167 matching lines @@
   # Copy logic from  tools/build/scripts/slave/runtest.py.
   asan = '--asan=1' in cmd
   lsan = '--lsan=1' in cmd
   msan = '--msan=1' in cmd
   tsan = '--tsan=1' in cmd
   use_symbolization_script = (asan or msan) and not lsan
 
   if asan or lsan or msan or tsan:
     extra_env.update(get_sanitizer_env(cmd, asan, lsan, msan, tsan))
 
-  if lsan or tsan or (asan and sys.platform == 'win32'):
-      # ASan is not yet sandbox-friendly on Windows (http://crbug.com/382867).
-      # LSan and TSan are not sandbox-friendly.
-      cmd.append('--no-sandbox')
+  if lsan or tsan:
+    # LSan and TSan are not sandbox-friendly.
+    cmd.append('--no-sandbox')
 
   cmd = trim_cmd(cmd)
 
   # Ensure paths are correctly separated on windows.
   cmd[0] = cmd[0].replace('/', os.path.sep)
   cmd = fix_python_path(cmd)
 
   print('Additional test environment:\n%s\n'
         'Command: %s\n' % (
         '\n'.join('    %s=%s' %
@@ skipping 20 matching lines @@
     print >> sys.stderr, 'Failed to start %s' % cmd
     raise
 
 
 def main():
   return run_executable(sys.argv[1:], os.environ.copy())
 
 
 if __name__ == '__main__':
   sys.exit(main())