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      1 // Copyright 2013 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_CONFLICT_RESOLUTION_RESOLVER_H_
      6 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_CONFLICT_RESOLUTION_RESOLVER_H_
      7 
      8 #include "chrome/browser/sync_file_system/conflict_resolution_policy.h"
      9 #include "chrome/browser/sync_file_system/sync_file_type.h"
     10 
     11 namespace base {
     12 class Time;
     13 }
     14 
     15 namespace sync_file_system {
     16 
     17 enum ConflictResolution {
     18   CONFLICT_RESOLUTION_UNKNOWN,
     19   CONFLICT_RESOLUTION_MARK_CONFLICT,
     20   CONFLICT_RESOLUTION_LOCAL_WIN,
     21   CONFLICT_RESOLUTION_REMOTE_WIN,
     22 };
     23 
     24 class ConflictResolutionResolver {
     25  public:
     26   explicit ConflictResolutionResolver(ConflictResolutionPolicy policy);
     27   ~ConflictResolutionResolver();
     28 
     29   // Determine the ConflictResolution.
     30   // This may return CONFLICT_RESOLUTION_UNKNOWN if NULL |remote_update_time|
     31   // is given.
     32   // It is invalid to give NULL |local_update_time|.
     33   ConflictResolution Resolve(
     34         SyncFileType local_file_type,
     35         const base::Time& local_update_time,
     36         SyncFileType remote_file_type,
     37         const base::Time& remote_update_time);
     38 
     39   ConflictResolutionPolicy policy() const { return policy_; }
     40   void set_policy(ConflictResolutionPolicy policy) { policy_ = policy; }
     41 
     42  private:
     43   ConflictResolutionPolicy policy_;
     44 };
     45 
     46 }  // namespace sync_file_system
     47 
     48 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_CONFLICT_RESOLUTION_RESOLVER_H_
     49