Componentize AccountReconcilor.

chrome/browser/signin/signin_oauth_helper.h

-// Copyright 2013 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_SIGNIN_SIGNIN_OAUTH_HELPER_H_
-#define CHROME_BROWSER_SIGNIN_SIGNIN_OAUTH_HELPER_H_
-
-#include <string>
-
-#include "base/memory/scoped_ptr.h"
-#include "google_apis/gaia/gaia_auth_consumer.h"
-#include "google_apis/gaia/gaia_auth_fetcher.h"
-
-// Retrieves the OAuth2 information from an already signed in cookie jar.
-// The information retrieved is: username, refresh token.
-class SigninOAuthHelper : public GaiaAuthConsumer {
- public:
-  // Implemented by users of SigninOAuthHelper to know then helper is finished.
-  class Consumer {
-   public:
-    virtual ~Consumer() {}
-
-    // Called when all the information is retrieved successfully.  |email|
-    // and |display_email| correspond to the gaia properties called "email"
-    // and "displayEmail" associated with the signed in account. |refresh_token|
-    // is the account's login-scoped oauth2 refresh token.
-    virtual void OnSigninOAuthInformationAvailable(
-        const std::string& email,
-        const std::string& display_email,
-        const std::string& refresh_token) {}
-
-    // Called when an error occurs while getting the information.
-    virtual void OnSigninOAuthInformationFailure(
-        const GoogleServiceAuthError& error) {}
-  };
-
-  explicit SigninOAuthHelper(net::URLRequestContextGetter* getter,
-                             const std::string& session_index,
-                             Consumer* consumer);
-  virtual ~SigninOAuthHelper();
-
- private:
-  // Overridden from GaiaAuthConsumer.
-  virtual void OnClientOAuthSuccess(const ClientOAuthResult& result) OVERRIDE;
-  virtual void OnClientOAuthFailure(
-      const GoogleServiceAuthError& error) OVERRIDE;
-  virtual void OnClientLoginSuccess(const ClientLoginResult& result) OVERRIDE;
-  virtual void OnClientLoginFailure(
-      const GoogleServiceAuthError& error) OVERRIDE;
-  virtual void OnGetUserInfoSuccess(const UserInfoMap& data) OVERRIDE;
-  virtual void OnGetUserInfoFailure(
-      const GoogleServiceAuthError& error) OVERRIDE;
-
-  GaiaAuthFetcher gaia_auth_fetcher_;
-  std::string refresh_token_;
-  Consumer* consumer_;
-
-  DISALLOW_COPY_AND_ASSIGN(SigninOAuthHelper);
-};
-
-#endif  // CHROME_BROWSER_SIGNIN_SIGNIN_OAUTH_HELPER_H_