Revert 198844 "Move sequenced_task_runner to base/task"

trunk/src/base/sequence_checker_impl_unittest.cc

 // 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 "base/sequence_checker_impl.h"
 
 #include <cstddef>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/location.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop.h"
-#include "base/task/sequenced_task_runner.h"
+#include "base/sequenced_task_runner.h"
 #include "base/threading/thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 
 namespace {
 
 // Implementation of SequencedTaskRunner that lets us control what
 // RunsTasksOnCurrentThread() returns.
 class FakeTaskRunner : public SequencedTaskRunner {
@@ skipping 184 matching lines @@
                         Unretained(&sequence_checker_impl),
                         false));
   }
 
   EXPECT_TRUE(sequence_checker_impl.CalledOnValidSequence());
 }
 
 }  // namespace
 
 }  // namespace base