Use a service to create device management backends.

chrome/browser/policy/device_management_backend_impl.h

-// Copyright (c) 2010 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_POLICY_DEVICE_MANAGEMENT_BACKEND_IMPL_H_
-#define CHROME_BROWSER_POLICY_DEVICE_MANAGEMENT_BACKEND_IMPL_H_
-#pragma once
-
-#include <map>
-#include <string>
-
-#include "chrome/browser/policy/device_management_backend.h"
-#include "chrome/common/net/url_fetcher.h"
-#include "googleurl/src/gurl.h"
-
-class URLRequestContextGetter;
-
-namespace policy {
-
-class ResponseHandler;
-class URLQueryParameters;
-
-// Device management backend implementation. This implementation makes HTTP
-// requests to the policy server through the net layer.
-class DeviceManagementBackendImpl : public DeviceManagementBackend,
-                                    public URLFetcher::Delegate {
- public:
-  explicit DeviceManagementBackendImpl(const std::string& server_url);
-  virtual ~DeviceManagementBackendImpl();
-
-  // GoogleAppsPolicyService overrides:
-  virtual void ProcessRegisterRequest(
-      const std::string& auth_token,
-      const std::string& device_id,
-      const em::DeviceRegisterRequest& request,
-      DeviceRegisterResponseDelegate* response_delegate);
-  virtual void ProcessUnregisterRequest(
-      const std::string& device_management_token,
-      const em::DeviceUnregisterRequest& request,
-      DeviceUnregisterResponseDelegate* response_delegate);
-  virtual void ProcessPolicyRequest(
-      const std::string& device_management_token,
-      const em::DevicePolicyRequest& request,
-      DevicePolicyResponseDelegate* response_delegate);
-
-  // Get the agent string (used for HTTP user agent and as agent passed to the
-  // server).
-  static std::string GetAgentString();
-
- private:
-  typedef std::map<const URLFetcher*, ResponseHandler*> ResponseHandlerMap;
-
-  // URLFetcher::Delegate override.
-  virtual void OnURLFetchComplete(const URLFetcher* source,
-                                  const GURL& url,
-                                  const URLRequestStatus& status,
-                                  int response_code,
-                                  const ResponseCookies& cookies,
-                                  const std::string& data);
-
-  // Create a URLFetcher for a given request message and response handler.
-  void CreateFetcher(const em::DeviceManagementRequest& request,
-                     ResponseHandler* handler,
-                     const std::string& query_params,
-                     const std::string& extra_headers);
-
-  // Fill in the common query parameters.
-  void PutCommonQueryParameters(URLQueryParameters* params);
-
-  // Server at which to contact the service.
-  const std::string server_url_;
-
-  // The request context we use.
-  scoped_refptr<URLRequestContextGetter> request_context_getter_;
-
-  // Keeps track of all in-flight requests an their response handlers.
-  ResponseHandlerMap response_handlers_;
-
-  DISALLOW_COPY_AND_ASSIGN(DeviceManagementBackendImpl);
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_POLICY_DEVICE_MANAGEMENT_BACKEND_IMPL_H_