Only display Link Doctor page on 404 errors with no body

chrome/renderer/navigation_state.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.
 
 #include "chrome/renderer/navigation_state.h"
 
 #include "chrome/renderer/user_script_idle_scheduler.h"
 #include "webkit/glue/alt_error_page_resource_fetcher.h"
 #include "webkit/glue/password_form.h"
 
@@ skipping 53 matching lines @@
                                  int pending_history_list_offset)
     : transition_type_(transition_type),
       load_type_(UNDEFINED_LOAD),
       request_time_(request_time),
       load_histograms_recorded_(false),
       web_timing_histograms_recorded_(false),
       request_committed_(false),
       is_content_initiated_(is_content_initiated),
       pending_page_id_(pending_page_id),
       pending_history_list_offset_(pending_history_list_offset),
-      postpone_loading_data_(false),
+      maybe_use_error_page_(false),
       is_prerendering_(false),
       was_started_as_prerender_(false),
       cache_policy_override_set_(false),
       cache_policy_override_(WebKit::WebURLRequest::UseProtocolCachePolicy),
       user_script_idle_scheduler_(NULL),
       http_status_code_(0),
       was_fetched_via_spdy_(false),
       was_npn_negotiated_(false),
       was_alternate_protocol_available_(false),
       was_fetched_via_proxy_(false),
       was_translated_(false),
       was_within_same_page_(false),
       was_prefetcher_(false),
       was_referred_by_prefetcher_(false) {
 }