Implement URLRequestBackoffManager for managing Backoff headers

chrome/common/localized_error.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/common/localized_error.h"
 
 #include "base/command_line.h"
 #include "base/i18n/rtl.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
@@ skipping 303 matching lines @@
    IDS_ERRORPAGES_DETAILS_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
    SUGGEST_NONE,
   },
   {net::ERR_SSL_VERSION_OR_CIPHER_MISMATCH,
    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
    IDS_ERRORPAGES_HEADING_SSL_VERSION_OR_CIPHER_MISMATCH,
    IDS_ERRORPAGES_SUMMARY_SSL_VERSION_OR_CIPHER_MISMATCH,
    IDS_ERRORPAGES_DETAILS_SSL_VERSION_OR_CIPHER_MISMATCH,
    SUGGEST_NONE,
   },
+  {net::ERR_TEMPORARY_BACKOFF,
+   IDS_ERRORPAGES_TITLE_ACCESS_DENIED,
+   IDS_ERRORPAGES_HEADING_ACCESS_DENIED,
+   IDS_ERRORPAGES_SUMMARY_TEMPORARY_BACKOFF,
+   IDS_ERRORPAGES_DETAILS_TEMPORARY_BACKOFF,
+   SUGGEST_NONE,
+  },
 };
 
 // Special error page to be used in the case of navigating back to a page
 // generated by a POST.  LocalizedError::HasStrings expects this net error code
 // to also appear in the array above.
 const LocalizedErrorMap repost_error = {
   net::ERR_CACHE_MISS,
   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
   IDS_HTTP_POST_WARNING_TITLE,
   IDS_ERRORPAGES_HTTP_POST_WARNING,
@@ skipping 577 matching lines @@
       cache_button->SetString("cacheUrl", cache_url);
       cache_button->SetInteger("trackingId", cache_tracking_id);
       error_strings->Set("cacheButton", cache_button.release());
 
       // Remove the item from suggestions dictionary so that it does not get
       // displayed by the template in the details section.
       suggestions->Remove(0, nullptr);
     }
   }
 }