Make ThreadChecker::CalledOnValidThread() return true when called from the same task.

base/sequence_checker_impl.h

 // 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.
 
 #ifndef BASE_SEQUENCE_CHECKER_IMPL_H_
 #define BASE_SEQUENCE_CHECKER_IMPL_H_
 
 #include "base/base_export.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
-#include "base/sequence_token.h"
+#include "base/sequence_and_task_token.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/threading/thread_checker_impl.h"
 
 namespace base {
 
 // Real implementation of SequenceChecker for use in debug mode or for temporary
 // use in release mode (e.g. to CHECK on a threading issue seen only in the
 // wild).
 //
@@ skipping 29 matching lines @@
 
   // Used when |sequenced_worker_pool_token_| and |sequence_token_| are invalid.
   ThreadCheckerImpl thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(SequenceCheckerImpl);
 };
 
 }  // namespace base
 
 #endif  // BASE_SEQUENCE_CHECKER_IMPL_H_