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      1 // Copyright (c) 2012 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_CHROMEOS_CONTACTS_CONTACT_STORE_OBSERVER_H_
      6 #define CHROME_BROWSER_CHROMEOS_CONTACTS_CONTACT_STORE_OBSERVER_H_
      7 
      8 #include "base/basictypes.h"
      9 
     10 namespace contacts {
     11 
     12 class ContactStore;
     13 
     14 // Interface for observing changes to a ContactStore.
     15 class ContactStoreObserver {
     16  public:
     17   ContactStoreObserver() {}
     18   virtual ~ContactStoreObserver() {}
     19 
     20   // Called when the contacts stored within a ContactStore are updated.
     21   virtual void OnContactsUpdated(ContactStore* store) = 0;
     22 
     23  private:
     24   DISALLOW_COPY_AND_ASSIGN(ContactStoreObserver);
     25 };
     26 
     27 }  // namespace contacts
     28 
     29 #endif  // CHROME_BROWSER_CHROMEOS_CONTACTS_CONTACT_STORE_OBSERVER_H_
     30