Converts MaximizeModeWindowManager to use ash/common types

ash/mus/bridge/wm_root_window_controller_mus.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/mus/bridge/wm_root_window_controller_mus.h"
 
+#include "ash/common/wm/workspace/workspace_layout_manager.h"
+#include "ash/common/wm/workspace/workspace_layout_manager_backdrop_delegate.h"
 #include "ash/common/wm_root_window_controller_observer.h"
 #include "ash/mus/bridge/wm_shelf_mus.h"
 #include "ash/mus/bridge/wm_shell_mus.h"
 #include "ash/mus/bridge/wm_window_mus.h"
 #include "ash/mus/container_ids.h"
 #include "ash/mus/root_window_controller.h"
 #include "components/mus/public/cpp/window.h"
 #include "components/mus/public/cpp/window_property.h"
 #include "components/mus/public/cpp/window_tree_client.h"
 #include "ui/display/display.h"
@@ skipping 68 matching lines @@
 
 WmShell* WmRootWindowControllerMus::GetShell() {
   return shell_;
 }
 
 wm::WorkspaceWindowState WmRootWindowControllerMus::GetWorkspaceWindowState() {
   NOTIMPLEMENTED();
   return wm::WORKSPACE_WINDOW_STATE_DEFAULT;
 }
 
+void WmRootWindowControllerMus::SetMaximizeBackdropDelegate(
+    std::unique_ptr<WorkspaceLayoutManagerBackdropDelegate> delegate) {
+  root_window_controller_->workspace_layout_manager()
+      ->SetMaximizeBackdropDelegate(std::move(delegate));
+}
+
 AlwaysOnTopController* WmRootWindowControllerMus::GetAlwaysOnTopController() {
   return root_window_controller_->always_on_top_controller();
 }
 
 WmShelf* WmRootWindowControllerMus::GetShelf() {
   return root_window_controller_->wm_shelf();
 }
 
 WmWindow* WmRootWindowControllerMus::GetWindow() {
   return WmWindowMus::Get(root_window_controller_->root());
@@ skipping 27 matching lines @@
   observers_.AddObserver(observer);
 }
 
 void WmRootWindowControllerMus::RemoveObserver(
     WmRootWindowControllerObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
 }  // namespace mus
 }  // namespace ash