Re-landing issue 4202006 (http://codereview.chromium.org/4202006/show) which ...

chrome/service/cloud_print/job_status_updater.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_SERVICE_CLOUD_PRINT_JOB_STATUS_UPDATER_H_
 #define CHROME_SERVICE_CLOUD_PRINT_JOB_STATUS_UPDATER_H_
 #pragma once
 
 #include <string>
 
 #include "base/ref_counted.h"
 #include "base/scoped_ptr.h"
 #include "base/thread.h"
+#include "chrome/service/cloud_print/cloud_print_url_fetcher.h"
 #include "chrome/service/cloud_print/print_system.h"
-#include "chrome/common/net/url_fetcher.h"
 #include "googleurl/src/gurl.h"
 #include "net/url_request/url_request_status.h"
 
 // Periodically monitors the status of a local print job and updates the
 // cloud print server accordingly. When the job has been completed this
 // object releases the reference to itself which should cause it to
 // self-destruct.
 class JobStatusUpdater : public base::RefCountedThreadSafe<JobStatusUpdater>,
-                         public URLFetcher::Delegate {
+                         public CloudPrintURLFetcherDelegate {
  public:
   class Delegate {
    public:
     virtual bool OnJobCompleted(JobStatusUpdater* updater) = 0;
     virtual void OnAuthError() = 0;
 
    protected:
     virtual ~Delegate() {}
   };
 
   JobStatusUpdater(const std::string& printer_name,
                    const std::string& job_id,
                    cloud_print::PlatformJobId& local_job_id,
                    const std::string& auth_token,
                    const GURL& cloud_print_server_url,
                    cloud_print::PrintSystem* print_system,
                    Delegate* delegate);
   virtual ~JobStatusUpdater();
 
   // Checks the status of the local print job and sends an update.
   void UpdateStatus();
   void Stop();
 
-  // URLFetcher::Delegate implementation.
-  virtual void OnURLFetchComplete(const URLFetcher* source, const GURL& url,
-                                  const URLRequestStatus& status,
-                                  int response_code,
-                                  const ResponseCookies& cookies,
-                                  const std::string& data);
+  // CloudPrintURLFetcher::Delegate implementation.
+  virtual CloudPrintURLFetcher::ResponseAction HandleJSONData(
+      const URLFetcher* source,
+      const GURL& url,
+      DictionaryValue* json_data,
+      bool succeeded);
+  virtual void OnRequestAuthError();
 
  private:
   std::string printer_name_;
   std::string job_id_;
   cloud_print::PlatformJobId local_job_id_;
   cloud_print::PrintJobDetails last_job_details_;
-  scoped_ptr<URLFetcher> request_;
+  scoped_refptr<CloudPrintURLFetcher> request_;
   std::string auth_token_;
   GURL cloud_print_server_url_;
   scoped_refptr<cloud_print::PrintSystem> print_system_;
   Delegate* delegate_;
   // A flag that is set to true in Stop() and will ensure the next scheduled
   // task will do nothing.
   bool stopped_;
   DISALLOW_COPY_AND_ASSIGN(JobStatusUpdater);
 };
 
 // This typedef is to workaround the issue with certain versions of
 // Visual Studio where it gets confused between multiple Delegate
 // classes and gives a C2500 error. (I saw this error on the try bots -
 // the workaround was not needed for my machine).
 typedef JobStatusUpdater::Delegate JobStatusUpdaterDelegate;
 
 #endif  // CHROME_SERVICE_CLOUD_PRINT_JOB_STATUS_UPDATER_H_