Revert 203015 "Add ManagedUserTokenFetcher to fetch scoped-down ..."

trunk/src/chrome/browser/managed_mode/managed_user_refresh_token_fetcher.h

Index: trunk/src/chrome/browser/managed_mode/managed_user_refresh_token_fetcher.h
===================================================================
--- trunk/src/chrome/browser/managed_mode/managed_user_refresh_token_fetcher.h	(revision 203118)
+++ trunk/src/chrome/browser/managed_mode/managed_user_refresh_token_fetcher.h	(working copy)
@@ -1,50 +0,0 @@
-// 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_MANAGED_MODE_MANAGED_USER_REFRESH_TOKEN_FETCHER_H_
-#define CHROME_BROWSER_MANAGED_MODE_MANAGED_USER_REFRESH_TOKEN_FETCHER_H_
-
-#include <string>
-
-#include "base/callback_forward.h"
-#include "base/compiler_specific.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/string16.h"
-
-class GoogleServiceAuthError;
-class OAuth2TokenService;
-
-namespace net {
-class URLRequestContextGetter;
-}
-
-// This class fetches an OAuth2 refresh token that is tied to a managed user ID
-// and downscoped to a special scope for Chrome Sync for managed users.
-// Fetching the token consists of the following steps:
-//   1. Get an access token for the custodian from OAuth2TokenService
-//      (either cached or fetched).
-//   2. Call the IssueToken API to mint a scoped authorization code for a
-//      refresh token for the managed user from the custodian's access token.
-//   3. Exchange the authorization code for a refresh token for the managed
-//      user and return it to the caller. The refresh token can only be used to
-//      mint tokens with the special managed user Sync scope.
-class ManagedUserRefreshTokenFetcher {
- public:
-  typedef base::Callback<void(const GoogleServiceAuthError& /* error */,
-                              const std::string& /* refresh_token */)>
-      TokenCallback;
-
-  static scoped_ptr<ManagedUserRefreshTokenFetcher> Create(
-      OAuth2TokenService* oauth2_token_service,
-      net::URLRequestContextGetter* context);
-
-  virtual ~ManagedUserRefreshTokenFetcher();
-
-  virtual void Start(const std::string& managed_user_id,
-                     const string16& name,
-                     const std::string& device_name,
-                     const TokenCallback& callback) = 0;
-};
-
-#endif  // CHROME_BROWSER_MANAGED_MODE_MANAGED_USER_REFRESH_TOKEN_FETCHER_H_