Moves creation of LockLayoutManager to common code

ash/common/wm_root_window_controller.cc

 // Copyright 2016 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 "ash/common/wm_root_window_controller.h"
 
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shelf/wm_shelf.h"
 #include "ash/common/shell_delegate.h"
 #include "ash/common/shell_window_ids.h"
 #include "ash/common/wallpaper/wallpaper_delegate.h"
 #include "ash/common/wallpaper/wallpaper_widget_controller.h"
 #include "ash/common/wm/container_finder.h"
+#include "ash/common/wm/lock_layout_manager.h"
 #include "ash/common/wm/root_window_layout_manager.h"
 #include "ash/common/wm/system_modal_container_layout_manager.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm/workspace/workspace_layout_manager.h"
 #include "ash/common/wm/workspace_controller.h"
 #include "ash/common/wm_shell.h"
 #include "ash/common/wm_window.h"
 #include "base/memory/ptr_util.h"
 #include "ui/base/models/menu_model.h"
 #include "ui/views/controls/menu/menu_model_adapter.h"
@@ skipping 409 matching lines @@
   DCHECK(modal_container);
   modal_container->SetLayoutManager(
       base::MakeUnique<SystemModalContainerLayoutManager>(modal_container));
 
   WmWindow* lock_modal_container =
       GetContainer(kShellWindowId_LockSystemModalContainer);
   DCHECK(lock_modal_container);
   lock_modal_container->SetLayoutManager(
       base::MakeUnique<SystemModalContainerLayoutManager>(
           lock_modal_container));
+
+  WmWindow* lock_container = GetContainer(kShellWindowId_LockScreenContainer);
+  DCHECK(lock_container);
+  lock_container->SetLayoutManager(
+      base::MakeUnique<LockLayoutManager>(lock_container));
 }
 
 void WmRootWindowController::DeleteWorkspaceController() {
   workspace_controller_.reset();
 }
 
 void WmRootWindowController::OnMenuClosed() {
   menu_runner_.reset();
   menu_model_adapter_.reset();
   menu_model_.reset();
   GetShelf()->UpdateVisibilityState();
 }
 
 }  // namespace ash