components: Cleanup class/struct fwd declarations

components/offline_pages/background/pick_request_task_factory.h

 // Copyright 2016 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 COMPONENTS_OFFLINE_PAGES_BACKGROUND_PICK_REQUEST_TASK_FACTORY_H_
 #define COMPONENTS_OFFLINE_PAGES_BACKGROUND_PICK_REQUEST_TASK_FACTORY_H_
 
 #include <stdint.h>
 
 #include <set>
 
 #include "components/offline_pages/background/pick_request_task.h"
 
 namespace offline_pages {
 
-class DeviceContitions;
 class OfflinerPolicy;
 class RequestCoordinatorEventLogger;
 class RequestNotifier;
 class RequestQueueStore;
 
 class PickRequestTaskFactory {
  public:
   PickRequestTaskFactory(OfflinerPolicy* policy,
                          RequestNotifier* notifier,
                          RequestCoordinatorEventLogger* event_logger);
@@ skipping 13 matching lines @@
   OfflinerPolicy* policy_;
   // Unowned pointer to the notifier
   RequestNotifier* notifier_;
   // Unowned pointer to the EventLogger
   RequestCoordinatorEventLogger* event_logger_;
 };
 
 }  // namespace offline_pages
 
 #endif  // COMPONENTS_OFFLINE_PAGES_BACKGROUND_PICK_REQUEST_TASK_FACTORY_H_