Fix license headers in a number of files

chrome/test/security_tests/ipc_security_tests.cc

-// Copyright (c) 2006-2008 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 <windows.h>
 #include <string>
 #include <sstream>
 
 #include "chrome/test/security_tests/ipc_security_tests.h"
 
 namespace {
@@ skipping 171 matching lines @@
   }
 
   HANDLE thread = ::CreateThread(NULL, 0, PipeServerProc,
                                  new Context(plugin_pipe), 0, NULL);
   if (NULL == thread) {
     return false;
   }
   ::CloseHandle(thread);
   return true;
 }