Move CancelableTaskTracker to //base/task/CancelableTaskTracker.

chrome/browser/chromeos/boot_times_loader.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 CHROME_BROWSER_CHROMEOS_BOOT_TIMES_LOADER_H_
 #define CHROME_BROWSER_CHROMEOS_BOOT_TIMES_LOADER_H_
 
 #include <set>
 #include <string>
 
 #include "base/atomic_sequence_num.h"
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
+#include "base/task/cancelable_task_tracker.h"
 #include "base/time/time.h"
-#include "chrome/common/cancelable_task_tracker.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/render_widget_host.h"
 
 namespace chromeos {
 
 // BootTimesLoader loads the bootimes of Chrome OS from the file system.
 // Loading is done asynchronously on the file thread. Once loaded,
 // BootTimesLoader calls back to a method of your choice with the boot times.
 // To use BootTimesLoader, do the following:
 //
 // . In your class define a member field of type chromeos::BootTimesLoader and
-//   CancelableTaskTracker.
+//   base::CancelableTaskTracker.
 // . Define the callback method, something like:
 //   void OnBootTimesLoaded(const BootTimesLoader::BootTimes& boot_times);
 // . When you want the version invoke: loader.GetBootTimes(callback, &tracker_);
 class BootTimesLoader : public content::NotificationObserver {
  public:
   BootTimesLoader();
   virtual ~BootTimesLoader();
 
   static BootTimesLoader* Get();
 
@@ skipping 103 matching lines @@
   std::vector<TimeMarker> login_time_markers_;
   std::vector<TimeMarker> logout_time_markers_;
   std::set<content::RenderWidgetHost*> render_widget_hosts_loading_;
 
   DISALLOW_COPY_AND_ASSIGN(BootTimesLoader);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_BOOT_TIMES_LOADER_H_