chromeos: Delete old, unused contacts code.

chrome/browser/chromeos/contacts/contact_store.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_STORE_H_
-#define CHROME_BROWSER_CHROMEOS_CONTACTS_CONTACT_STORE_H_
-
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-
-class Profile;
-
-namespace contacts {
-
-class Contact;
-typedef std::vector<const Contact*> ContactPointers;
-class ContactStoreObserver;
-
-// Interface for classes that store contacts from a particular source.
-class ContactStore {
- public:
-  ContactStore() {}
-  virtual ~ContactStore() {}
-
-  // Initializes the object.
-  virtual void Init() = 0;
-
-  // Appends all (non-deleted) contacts to |contacts_out|.
-  virtual void AppendContacts(ContactPointers* contacts_out) = 0;
-
-  // Returns the contact identified by |contact_id|.
-  // NULL is returned if the contact doesn't exist.
-  virtual const Contact* GetContactById(const std::string& contact_id) = 0;
-
-  // Adds or removes an observer.
-  virtual void AddObserver(ContactStoreObserver* observer) = 0;
-  virtual void RemoveObserver(ContactStoreObserver* observer) = 0;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(ContactStore);
-};
-
-// Interface for factories that return ContactStore objects of a given type.
-class ContactStoreFactory {
- public:
-  ContactStoreFactory() {}
-  virtual ~ContactStoreFactory() {}
-
-  // Does |profile| support this type of ContactStore?
-  virtual bool CanCreateContactStoreForProfile(Profile* profile) = 0;
-
-  // Creates and returns a new, uninitialized ContactStore for |profile|.
-  // CanCreateContactStoreForProfile() should be called first.
-  // TODO(derat): Figure out how this should work if/when there are other
-  // ContactStore implementations that need additional information beyond the
-  // stuff contained in a Profile.
-  virtual ContactStore* CreateContactStore(Profile* profile) = 0;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(ContactStoreFactory);
-};
-
-}  // namespace contacts
-
-#endif  // CHROME_BROWSER_CHROMEOS_CONTACTS_CONTACT_STORE_H_