Migrate call sites LoginDisplayHostImpl::default_host to LoginDisplayHost.

chrome/browser/ui/webui/chromeos/login/base_screen_handler.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/ui/webui/chromeos/login/base_screen_handler.h"
 
 #include "base/logging.h"
 #include "base/values.h"
-#include "chrome/browser/chromeos/login/ui/login_display_host_impl.h"
+#include "chrome/browser/chromeos/login/screens/base_screen.h"
+#include "chrome/browser/chromeos/login/ui/login_display_host.h"
 #include "components/login/localized_values_builder.h"
 #include "content/public/browser/web_ui.h"
 #include "ui/base/l10n/l10n_util.h"
 
 namespace chromeos {
 
 namespace {
 const char kMethodContextChanged[] = "contextChanged";
 }  // namespace
 
@@ skipping 54 matching lines @@
   if (!web_ui())
     return;
   base::DictionaryValue screen_params;
   screen_params.SetString("id", screen_name);
   if (data)
     screen_params.SetWithoutPathExpansion("data", data->DeepCopy());
   web_ui()->CallJavascriptFunction("cr.ui.Oobe.showScreen", screen_params);
 }
 
 gfx::NativeWindow BaseScreenHandler::GetNativeWindow() {
-  return LoginDisplayHostImpl::default_host()->GetNativeWindow();
+  return LoginDisplayHost::default_host()->GetNativeWindow();
 }
 
 void BaseScreenHandler::SetBaseScreen(BaseScreen* base_screen) {
   if (base_screen_ == base_screen)
     return;
   if (base_screen_)
     base_screen_->set_model_view_channel(nullptr);
   base_screen_ = base_screen;
   if (base_screen_)
     base_screen_->set_model_view_channel(this);
 }
 
 std::string BaseScreenHandler::FullMethodPath(const std::string& method) const {
   DCHECK(!method.empty());
   return js_screen_path_prefix_ + method;
 }
 
 void BaseScreenHandler::HandleUserAction(const std::string& action_id) {
   if (base_screen_)
     base_screen_->OnUserAction(action_id);
 }
 
 void BaseScreenHandler::HandleContextChanged(
     const base::DictionaryValue* diff) {
   if (diff && base_screen_)
     base_screen_->OnContextChanged(*diff);
 }
 
 }  // namespace chromeos