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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_TASK_H_
      6 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_TASK_H_
      7 
      8 #include "base/memory/scoped_ptr.h"
      9 #include "base/memory/weak_ptr.h"
     10 #include "chrome/browser/sync_file_system/sync_callbacks.h"
     11 
     12 namespace sync_file_system {
     13 namespace drive_backend {
     14 
     15 class SyncTaskToken;
     16 
     17 class SyncTask {
     18  public:
     19   SyncTask() : used_network_(false) {}
     20   virtual ~SyncTask() {}
     21   virtual void RunPreflight(scoped_ptr<SyncTaskToken> token) = 0;
     22 
     23   bool used_network() { return used_network_; }
     24 
     25  protected:
     26   void set_used_network(bool used_network) {
     27     used_network_ = used_network;
     28   }
     29 
     30  private:
     31   bool used_network_;
     32 
     33   DISALLOW_COPY_AND_ASSIGN(SyncTask);
     34 };
     35 
     36 class ExclusiveTask : public SyncTask {
     37  public:
     38   ExclusiveTask();
     39   virtual ~ExclusiveTask();
     40 
     41   virtual void RunPreflight(scoped_ptr<SyncTaskToken> token) OVERRIDE FINAL;
     42   virtual void RunExclusive(const SyncStatusCallback& callback) = 0;
     43 
     44  private:
     45   base::WeakPtrFactory<ExclusiveTask> weak_ptr_factory_;
     46 
     47   DISALLOW_COPY_AND_ASSIGN(ExclusiveTask);
     48 };
     49 
     50 }  // namespace drive_backend
     51 }  // namespace sync_file_system
     52 
     53 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_TASK_H_
     54