Added 'dry run' tag to the print job, to test proxy health without wasting pa...

chrome/service/cloud_print/cloud_print_consts.cc

 // 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.
 
 // Constant defines used in the cloud print proxy code
 
 #include "chrome/service/cloud_print/cloud_print_consts.h"
 
 const char kProxyIdValue[] = "proxy";
 const char kPrinterNameValue[] = "printer";
 const char kPrinterDescValue[] = "description";
 const char kPrinterCapsValue[] = "capabilities";
 const char kPrinterDefaultsValue[] = "defaults";
 const char kPrinterStatusValue[] = "status";
 const char kPrinterTagValue[] = "tag";
 const char kPrinterRemoveTagValue[] = "remove_tag";
 
 // Values in the respone JSON from the cloud print server
 const char kPrinterListValue[] = "printers";
 const char kSuccessValue[] = "success";
 const char kNameValue[] = "name";
 const char kIdValue[] = "id";
 const char kTicketUrlValue[] = "ticketUrl";
 const char kFileUrlValue[] = "fileUrl";
 const char kJobListValue[] = "jobs";
 const char kTitleValue[] = "title";
 const char kPrinterCapsHashValue[] = "capsHash";
-const char kPrinterTagsValue[] = "tags";
+const char kTagsValue[] = "tags";
 const char kProxyTagPrefix[] = "__cp__";
 const char kTagsHashTagName[] = "__cp__tagshash";
+const char kTagDryRunFlag[] = "__cp__dry_run";
 
 
 const char kDefaultCloudPrintServerUrl[] = "https://www.google.com/cloudprint";
 const char kGaiaUrl[] = "https://www.google.com/accounts/ClientLogin";
 const char kCloudPrintGaiaServiceId[] = "cloudprint";
 const char kSyncGaiaServiceId[] = "chromiumsync";
 const char kCloudPrintPushNotificationsSource[] = "cloudprint.google.com";
 // The cloud print server expects the X-Google-CloudPrint-Proxy header for
 // certain requests.
 const char kChromeCloudPrintProxyHeader[] = "X-CloudPrint-Proxy: Chrome";
 
 // The string to be appended to the user-agent for cloudprint requests.
 const char kCloudPrintUserAgent[] = "GoogleCloudPrintProxy";
 
 // Reasons for fetching print jobs.
 // Job fetch on proxy startup.
 const char kJobFetchReasonStartup[] = "startup";
 // Job fetch because we are polling.
 const char kJobFetchReasonPoll[] = "poll";
 // Job fetch on being notified by the server.
 const char kJobFetchReasonNotified[] = "notified";
 // Job fetch after a successful print to query for more jobs.
 const char kJobFetchReasonQueryMore[] = "querymore";