Revert 198844 "Move sequenced_task_runner to base/task"

trunk/src/chrome/browser/media_galleries/scoped_mtp_device_map_entry.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.
 
 // ScopedMTPDeviceMapEntry manages the lifetime of a MTPDeviceAsyncDelegate.
 // Each extension that uses a device holds a reference to the device's
 // ScopedMTPDeviceMapEntry.
 
 #ifndef CHROME_BROWSER_MEDIA_GALLERIES_SCOPED_MTP_DEVICE_MAP_ENTRY_H_
 #define CHROME_BROWSER_MEDIA_GALLERIES_SCOPED_MTP_DEVICE_MAP_ENTRY_H_
 
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
-#include "base/task/sequenced_task_runner_helpers.h"
+#include "base/sequenced_task_runner_helpers.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace chrome {
 
 class MTPDeviceAsyncDelegate;
 
 class ScopedMTPDeviceMapEntry
     : public base::RefCountedThreadSafe<
           ScopedMTPDeviceMapEntry, content::BrowserThread::DeleteOnUIThread> {
  public:
@@ skipping 29 matching lines @@
 
   // Called when the object is destroyed.
   base::Closure on_destruction_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedMTPDeviceMapEntry);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_SCOPED_MTP_DEVICE_MAP_ENTRY_H_