autofill: Refactor PersonalDataManager::Observer into its own header file.

chrome/browser/autofill/personal_data_manager.h

 // Copyright (c) 2011 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_AUTOFILL_PERSONAL_DATA_MANAGER_H_
 #define CHROME_BROWSER_AUTOFILL_PERSONAL_DATA_MANAGER_H_
 #pragma once
 
 #include <set>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/observer_list.h"
 #include "base/string16.h"
 #include "chrome/browser/autofill/autofill_profile.h"
 #include "chrome/browser/autofill/credit_card.h"
 #include "chrome/browser/autofill/field_types.h"
 #include "chrome/browser/sync/profile_sync_service_observer.h"
 #include "chrome/browser/webdata/web_data_service.h"
 
 class AutofillManager;
 class AutofillMetrics;
 class FormStructure;
+class PersonalDataManagerObserver;
 class Profile;
 
 // Handles loading and saving Autofill profile information to the web database.
 // This class also stores the profiles loaded from the database for use during
 // Autofill.
 class PersonalDataManager
     : public WebDataServiceConsumer,
       public ProfileSyncServiceObserver,
       public base::RefCountedThreadSafe<PersonalDataManager> {
  public:
-  // An interface the PersonalDataManager uses to notify its clients (observers)
-  // when it has finished loading personal data from the web database.  Register
-  // the observer via PersonalDataManager::SetObserver.
-  class Observer {
-   public:
-    // Notifies the observer that the PersonalDataManager changed in some way.
-    virtual void OnPersonalDataChanged() = 0;
-
-   protected:
-    virtual ~Observer() {}
-  };
-
   // WebDataServiceConsumer implementation:
   virtual void OnWebDataServiceRequestDone(WebDataService::Handle h,
                                            const WDTypedResult* result);
 
   // Sets the listener to be notified of PersonalDataManager events.
-  virtual void SetObserver(PersonalDataManager::Observer* observer);
+  virtual void SetObserver(PersonalDataManagerObserver* observer);
 
   // Removes |observer| as the observer of this PersonalDataManager.
-  virtual void RemoveObserver(PersonalDataManager::Observer* observer);
+  virtual void RemoveObserver(PersonalDataManagerObserver* observer);
 
   // ProfileSyncServiceObserver:
   virtual void OnStateChanged();
 
   // Scans the given |form| for importable Autofill data. If the form includes
   // sufficient address data, it is immediately imported. If the form includes
   // sufficient credit card data, it is stored into |credit_card|, so that we
   // can prompt the user whether to save this data.
   // Returns |true| if sufficient address or credit card data was found.
   bool ImportFormData(const FormStructure& form,
@@ skipping 159 matching lines @@
   ScopedVector<CreditCard> credit_cards_;
 
   // When the manager makes a request from WebDataService, the database
   // is queried on another thread, we record the query handle until we
   // get called back.  We store handles for both profile and credit card queries
   // so they can be loaded at the same time.
   WebDataService::Handle pending_profiles_query_;
   WebDataService::Handle pending_creditcards_query_;
 
   // The observers.
-  ObserverList<Observer> observers_;
+  ObserverList<PersonalDataManagerObserver> observers_;
 
  private:
   // For logging UMA metrics. Overridden by metrics tests.
   scoped_ptr<const AutofillMetrics> metric_logger_;
 
   // Whether we have already logged the number of profiles this session.
   mutable bool has_logged_profile_count_;
 
   DISALLOW_COPY_AND_ASSIGN(PersonalDataManager);
 };
 
 #endif  // CHROME_BROWSER_AUTOFILL_PERSONAL_DATA_MANAGER_H_