Add a Dns preresolve interface in //content

chrome/browser/chromeos/login/helper.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/browser/chromeos/login/helper.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/chromeos/login/startup_utils.h"
 #include "chrome/browser/chromeos/login/ui/login_display_host.h"
 #include "chrome/browser/chromeos/login/ui/webui_login_view.h"
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/grit/generated_resources.h"
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/network/managed_network_configuration_handler.h"
 #include "chromeos/network/network_connection_handler.h"
 #include "chromeos/network/network_handler.h"
 #include "chromeos/network/network_state.h"
 #include "chromeos/network/network_state_handler.h"
 #include "chromeos/network/network_util.h"
 #include "components/guest_view/browser/guest_view_manager.h"
+#include "content/public/browser/resource_context.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/guest_view/web_view/web_view_guest.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
 #include "ui/gfx/image/image_skia.h"
 
 namespace chromeos {
@@ skipping 207 matching lines @@
 
     if (!signin_partition)
       return nullptr;
 
     return signin_partition->GetURLRequestContext();
   }
 
   return ProfileHelper::GetSigninProfile()->GetRequestContext();
 }
 
+content::ResourceContext* GetSigninResourceContext() {
+  return ProfileHelper::GetSigninProfile()->GetResourceContext();
+}
+
 }  // namespace login
 
 }  // namespace chromeos