Revert of Remove header dependencies from sequence_checker.h to sequenced_worker_pool.h

chromeos/tpm/tpm_token_loader.h

 // Copyright 2014 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.
 
 #ifndef CHROMEOS_TPM_TPM_TOKEN_LOADER_H_
 #define CHROMEOS_TPM_TPM_TOKEN_LOADER_H_
 
 #include <memory>
 #include <string>
 #include <vector>
 
-#include "base/callback_forward.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/threading/thread_checker.h"
 #include "chromeos/chromeos_export.h"
 #include "chromeos/login/login_state.h"
 
 namespace base {
 class SequencedTaskRunner;
@@ skipping 111 matching lines @@
   scoped_refptr<base::SequencedTaskRunner> crypto_task_runner_;
 
   base::WeakPtrFactory<TPMTokenLoader> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TPMTokenLoader);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_TPM_TPM_TOKEN_LOADER_H_