Revert HTTP/0.9 removal (https://codereview.chromium.org/2144803002/)

components/error_page/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 "components/error_page/common/localized_error.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 196 matching lines @@
    IDS_ERRORPAGES_SUMMARY_INVALID_RESPONSE,
    SUGGEST_NONE,
    SHOW_BUTTON_RELOAD,
   },
   {net::ERR_RESPONSE_HEADERS_MULTIPLE_LOCATION,
    IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
    IDS_ERRORPAGES_SUMMARY_INVALID_RESPONSE,
    SUGGEST_NONE,
    SHOW_BUTTON_RELOAD,
   },
-  {net::ERR_INVALID_HTTP_RESPONSE,
-   IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
-   IDS_ERRORPAGES_SUMMARY_INVALID_RESPONSE,
-   SUGGEST_NONE,
-   SHOW_BUTTON_RELOAD,
-  },
   {net::ERR_CONTENT_LENGTH_MISMATCH,
    IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
    IDS_ERRORPAGES_SUMMARY_CONNECTION_CLOSED,
    SUGGEST_NONE,
    SHOW_BUTTON_RELOAD,
   },
   {net::ERR_INCOMPLETE_CHUNKED_ENCODING,
    IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
    IDS_ERRORPAGES_SUMMARY_CONNECTION_CLOSED,
    SUGGEST_NONE,
@@ skipping 789 matching lines @@
 
 bool LocalizedError::HasStrings(const std::string& error_domain,
                                 int error_code) {
   // Whether or not the there are strings for an error does not depend on
   // whether or not the page was be generated by a POST, so just claim it was
   // not.
   return LookupErrorMap(error_domain, error_code, /*is_post=*/false) != nullptr;
 }
 
 }  // namespace error_page