chromeos: Delete old, unused contacts code.

chrome/browser/chromeos/contacts/contact_database.h

-// Copyright (c) 2012 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_CHROMEOS_CONTACTS_CONTACT_DATABASE_H_
-#define CHROME_BROWSER_CHROMEOS_CONTACTS_CONTACT_DATABASE_H_
-
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/callback.h"
-#include "base/compiler_specific.h"
-#include "base/files/file_path.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/scoped_vector.h"
-#include "base/memory/weak_ptr.h"
-
-namespace base {
-class SequencedTaskRunner;
-}
-
-namespace leveldb {
-class DB;
-}
-
-namespace contacts {
-
-class Contact;
-class UpdateMetadata;
-typedef std::vector<const Contact*> ContactPointers;
-
-// Interface for classes providing persistent storage of Contact objects.
-class ContactDatabaseInterface {
- public:
-  typedef std::vector<std::string> ContactIds;
-  typedef base::Callback<void(bool success)> InitCallback;
-  typedef base::Callback<void(bool success)> SaveCallback;
-  typedef base::Callback<void(bool success,
-                              scoped_ptr<ScopedVector<Contact> >,
-                              scoped_ptr<UpdateMetadata>)>
-      LoadCallback;
-
-  // Asynchronously destroys the object after all in-progress file operations
-  // have completed.
-  virtual void DestroyOnUIThread() {}
-
-  // Asynchronously initializes the object.  |callback| will be invoked on the
-  // UI thread when complete.
-  virtual void Init(const base::FilePath& database_dir,
-                    InitCallback callback) = 0;
-
-  // Asynchronously saves |contacts_to_save| and |metadata| to the database and
-  // removes contacts with IDs contained in |contact_ids_to_delete|.  If
-  // |is_full_update| is true, all existing contacts in the database not present
-  // in |contacts_to_save| will be removed.  |callback| will be invoked on the
-  // UI thread when complete.  The caller must not make changes to the
-  // underlying passed-in Contact objects until the callback has been invoked.
-  virtual void SaveContacts(scoped_ptr<ContactPointers> contacts_to_save,
-                            scoped_ptr<ContactIds> contact_ids_to_delete,
-                            scoped_ptr<UpdateMetadata> metadata,
-                            bool is_full_update,
-                            SaveCallback callback) = 0;
-
-  // Asynchronously loads all contacts from the database and invokes |callback|
-  // when complete.
-  virtual void LoadContacts(LoadCallback callback) = 0;
-
- protected:
-  virtual ~ContactDatabaseInterface() {}
-};
-
-class ContactDatabase : public ContactDatabaseInterface {
- public:
-  ContactDatabase();
-
-  // ContactDatabaseInterface implementation.
-  virtual void DestroyOnUIThread() OVERRIDE;
-  virtual void Init(const base::FilePath& database_dir,
-                    InitCallback callback) OVERRIDE;
-  virtual void SaveContacts(scoped_ptr<ContactPointers> contacts_to_save,
-                            scoped_ptr<ContactIds> contact_ids_to_delete,
-                            scoped_ptr<UpdateMetadata> metadata,
-                            bool is_full_update,
-                            SaveCallback callback) OVERRIDE;
-  virtual void LoadContacts(LoadCallback callback) OVERRIDE;
-
- protected:
-  virtual ~ContactDatabase();
-
- private:
-  // Are we currently being run by |task_runner_|?
-  bool IsRunByTaskRunner() const;
-
-  // Deletes |this|.
-  void DestroyFromTaskRunner();
-
-  // Passes the supplied parameters to |callback| after being called on the UI
-  // thread.  Used for replies sent in response to |task_runner_|'s tasks, so
-  // that weak_ptrs can be used to avoid running the replies after the
-  // ContactDatabase has been deleted.
-  void RunInitCallback(InitCallback callback, const bool* success);
-  void RunSaveCallback(SaveCallback callback, const bool* success);
-  void RunLoadCallback(LoadCallback callback,
-                       const bool* success,
-                       scoped_ptr<ScopedVector<Contact> > contacts,
-                       scoped_ptr<UpdateMetadata> metadata);
-
-  // Initializes the database in |database_dir| and updates |success|.
-  void InitFromTaskRunner(const base::FilePath& database_dir, bool* success);
-
-  // Saves data to disk and updates |success|.
-  void SaveContactsFromTaskRunner(scoped_ptr<ContactPointers> contacts_to_save,
-                                  scoped_ptr<ContactIds> contact_ids_to_delete,
-                                  scoped_ptr<UpdateMetadata> metadata,
-                                  bool is_full_update,
-                                  bool* success);
-
-  // Loads contacts from disk and updates |success|.
-  void LoadContactsFromTaskRunner(bool* success,
-                                  ScopedVector<Contact>* contacts,
-                                  UpdateMetadata* metadata);
-
-  // Used to run blocking tasks in-order.
-  scoped_refptr<base::SequencedTaskRunner> task_runner_;
-
-  scoped_ptr<leveldb::DB> db_;
-
-  // Note: This should remain the last member so it'll be destroyed and
-  // invalidate its weak pointers before any other members are destroyed.
-  base::WeakPtrFactory<ContactDatabase> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(ContactDatabase);
-};
-
-}  // namespace contacts
-
-#endif  // CHROME_BROWSER_CHROMEOS_CONTACTS_CONTACT_DATABASE_H_