Make --allow-cross-domain-auth-prompt equivalent to a preference.

chrome/browser/io_thread.cc

 // 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.
 
 #include "chrome/browser/io_thread.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/debug/leak_tracker.h"
@@ skipping 557 matching lines @@
 // static
 void IOThread::RegisterPrefs(PrefService* local_state) {
   local_state->RegisterStringPref(prefs::kAuthSchemes,
                                   "basic,digest,ntlm,negotiate");
   local_state->RegisterBooleanPref(prefs::kDisableAuthNegotiateCnameLookup,
                                    false);
   local_state->RegisterBooleanPref(prefs::kEnableAuthNegotiatePort, false);
   local_state->RegisterStringPref(prefs::kAuthServerWhitelist, "");
   local_state->RegisterStringPref(prefs::kAuthNegotiateDelegateWhitelist, "");
   local_state->RegisterStringPref(prefs::kGSSAPILibraryName, "");
+  local_state->RegisterBooleanPref(prefs::kAllowCrossOriginAuthPrompt, false);
   local_state->RegisterBooleanPref(prefs::kEnableReferrers, true);
 }
 
 net::HttpAuthHandlerFactory* IOThread::CreateDefaultAuthHandlerFactory(
     net::HostResolver* resolver) {
   net::HttpAuthFilterWhitelist* auth_filter_default_credentials = NULL;
   if (!auth_server_whitelist_.empty()) {
     auth_filter_default_credentials =
         new net::HttpAuthFilterWhitelist(auth_server_whitelist_);
   }
@@ skipping 102 matching lines @@
   system_params.network_delegate = globals_->system_network_delegate.get();
   system_params.net_log = net_log_;
   globals_->system_http_transaction_factory.reset(
       new net::HttpNetworkLayer(
           new net::HttpNetworkSession(system_params)));
   globals_->system_ftp_transaction_factory.reset(
       new net::FtpNetworkLayer(globals_->host_resolver.get()));
   globals_->system_request_context =
       ConstructSystemRequestContext(globals_, net_log_);
 }