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

chrome/service/cloud_print/cloud_print_helpers.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_CLOUD_PRINT_HELPERS_H_
 #define CHROME_SERVICE_CLOUD_PRINT_CLOUD_PRINT_HELPERS_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 22 matching lines @@
                                        cloud_print::PrintJobStatus status);
   static GURL GetUrlForJobStatusUpdate(
       const GURL& cloud_print_server_url, const std::string& job_id,
       const cloud_print::PrintJobDetails& details);
   // Parses the response data for any cloud print server request. The method
   // returns false if there was an error in parsing the JSON. The succeeded
   // value returns the value of the "success" value in the response JSON.
   // Returns the response as a dictionary value.
   static bool ParseResponseJSON(const std::string& response_data,
       bool* succeeded, DictionaryValue** response_dict);
-  // Sets up common parameters for a cloud print request
-  // (such as the GAIA auth token in the request headers, the request context
-  // etc).
-  static void PrepCloudPrintRequest(URLFetcher* request,
-                                    const std::string& auth_token);
-  // Strictly speaking, this helper method is not specific to cloud printing.
-  // It handles the logic to retry tasks when the server returns an error.
-  // The parameters are as below:
-  // |error_count| Contains the current number of consecutive failed attempts.
-  // This method increments it (in/out)
-  // |max_retry_count| Number of retries before giving up. -1 implies no limit.
-  // |max_retry_interval| Maximum amount of time (in ms) we are willing to
-  // wait between retries. -1 implies no limit.
-  // |base_retry_interval| Starting value of the retry interval. This
-  // method progressively increases the interval on each retry.
-  // |task_to_retry| The task to be retried.
-  // |task_on_give_up| Task to be performed when we give up. This is only
-  // valid when max_retry_count is not -1. It can be NULL.
-  static void HandleServerError(int* error_count, int max_retry_count,
-                                int64 max_retry_interval,
-                                int64 base_retry_interval,
-                                Task* task_to_retry, Task* task_on_give_up);
+
   // Prepares one value as part of a multi-part upload request.
   static void AddMultipartValueForUpload(
       const std::string& value_name, const std::string& value,
       const std::string& mime_boundary, const std::string& content_type,
       std::string* post_data);
 // Create a MIME boundary marker (27 '-' characters followed by 16 hex digits).
   static void CreateMimeBoundaryForUpload(std::string *out);
   // Generates an MD5 hash of the contents of a string map.
   static std::string GenerateHashOfStringMap(
       const std::map<std::string, std::string>& string_map);
   static void GenerateMultipartPostDataForPrinterTags(
       const std::map<std::string, std::string>& printer_tags,
       const std::string& mime_boundary,
       std::string* post_data);
 
  private:
   CloudPrintHelpers() {
   }
 };
 
 #endif  // CHROME_SERVICE_CLOUD_PRINT_CLOUD_PRINT_HELPERS_H_