Refactor PanelLayoutManager to use aura::LayoutManager

ash/root_window_controller.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 "ash/root_window_controller.h"
 
 #include <algorithm>
 #include <queue>
 #include <vector>
 
@@ skipping 847 matching lines @@
   // Create Docked windows layout manager
   WmWindow* docked_container = GetWmContainer(kShellWindowId_DockedContainer);
   docked_window_layout_manager_ =
       new DockedWindowLayoutManager(docked_container);
   docked_container->SetLayoutManager(
       base::WrapUnique(docked_window_layout_manager_));
 
   // Create Panel layout manager
   WmWindow* wm_panel_container = GetWmContainer(kShellWindowId_PanelContainer);
   panel_layout_manager_ = new PanelLayoutManager(wm_panel_container);
-  wm_panel_container->SetLayoutManager(base::WrapUnique(panel_layout_manager_));
+  wm_panel_container->aura_window()->SetLayoutManager(panel_layout_manager_);
 
   wm::WmSnapToPixelLayoutManager::InstallOnContainers(root);
 
   // Make it easier to resize windows that partially overlap the shelf. Must
   // occur after the ShelfLayoutManager is constructed by ShelfWidget.
   aura::Window* shelf_container = GetContainer(kShellWindowId_ShelfContainer);
   WmWindow* wm_shelf_container = WmWindow::Get(shelf_container);
   shelf_container->SetEventTargeter(base::MakeUnique<ShelfWindowTargeter>(
       wm_shelf_container, wm_shelf_.get()));
   aura::Window* status_container = GetContainer(kShellWindowId_StatusContainer);
@@ skipping 263 matching lines @@
     EnableTouchHudProjection();
   else
     DisableTouchHudProjection();
 }
 
 RootWindowController* GetRootWindowController(const aura::Window* root_window) {
   return root_window ? GetRootWindowSettings(root_window)->controller : nullptr;
 }
 
 }  // namespace ash