Fix license headers in a number of files

sandbox/win/sandbox_poc/pocdll/handles.cc

-// Copyright (c) 2006-2010 The Chromium Authors. All rights reserved.
+// 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.
 
 #include "sandbox/win/sandbox_poc/pocdll/exports.h"
 #include "sandbox/win/sandbox_poc/pocdll/utils.h"
 #include "sandbox/win/tools/finder/ntundoc.h"
 
 // This file contains the tests used to verify the security of handles in
 // the process
 
@@ skipping 165 matching lines @@
 
     if (name) {
       delete [] name;
     }
   }
 
   if (system_handles) {
     delete [] system_handles;
   }
 }