Added support to the Windows cloud print proxy to print XPS documents directl...

chrome/service/cloud_print/cloud_print_url_fetcher.h

 // Copyright (c) 2011 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_URL_FETCHER_H_
 #define CHROME_SERVICE_CLOUD_PRINT_CLOUD_PRINT_URL_FETCHER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 63 matching lines @@
     virtual void OnRequestGiveUp() { }
     // Invoked when the request returns a 403 error (applicable only when
     // HandleRawResponse returns CONTINUE_PROCESSING)
     virtual void OnRequestAuthError() = 0;
   };
   CloudPrintURLFetcher();
 
   void StartGetRequest(const GURL& url,
                        Delegate* delegate,
                        const std::string& auth_token,
-                       int max_retries);
+                       int max_retries,
+                       const std::string& additional_headers);
   void StartPostRequest(const GURL& url,
                         Delegate* delegate,
                         const std::string& auth_token,
                         int max_retries,
                         const std::string& post_data_mime_type,
-                        const std::string& post_data);
+                        const std::string& post_data,
+                        const std::string& additional_headers);
 
   // URLFetcher::Delegate implementation.
   virtual void OnURLFetchComplete(const URLFetcher* source, const GURL& url,
                                   const net::URLRequestStatus& status,
                                   int response_code,
                                   const ResponseCookies& cookies,
                                   const std::string& data);
  protected:
   friend class base::RefCountedThreadSafe<CloudPrintURLFetcher>;
   virtual ~CloudPrintURLFetcher();
 
   // Virtual for testing.
   virtual URLRequestContextGetter* GetRequestContextGetter();
 
  private:
   void StartRequestHelper(const GURL& url,
                           URLFetcher::RequestType request_type,
                           Delegate* delegate,
                           const std::string& auth_token,
                           int max_retries,
                           const std::string& post_data_mime_type,
-                          const std::string& post_data);
+                          const std::string& post_data,
+                          const std::string& additional_headers);
 
   scoped_ptr<URLFetcher> request_;
   Delegate* delegate_;
   int num_retries_;
 };
 
 typedef CloudPrintURLFetcher::Delegate CloudPrintURLFetcherDelegate;
 
 #endif  // CHROME_SERVICE_CLOUD_PRINT_CLOUD_PRINT_URL_FETCHER_H_