Refactors DockedWindowLayoutManager in terms of ash/wm/common

ash/mus/shelf_delegate_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/shelf_delegate_mus.h"
 
 #include <memory>
 
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_item_delegate.h"
@@ skipping 240 matching lines @@
   Shelf* shelf = Shelf::ForPrimaryDisplay();
   observer_ptr->OnAlignmentChanged(
       static_cast<mash::shelf::mojom::Alignment>(shelf->alignment()));
   observer_ptr->OnAutoHideBehaviorChanged(
       static_cast<mash::shelf::mojom::AutoHideBehavior>(
           shelf->auto_hide_behavior()));
   observers_.AddPtr(std::move(observer_ptr));
 }
 
 void ShelfDelegateMus::SetAlignment(mash::shelf::mojom::Alignment alignment) {
-  ShelfAlignment value = static_cast<ShelfAlignment>(alignment);
+  wm::ShelfAlignment value = static_cast<wm::ShelfAlignment>(alignment);
   Shell::GetInstance()->SetShelfAlignment(value, Shell::GetPrimaryRootWindow());
 }
 
 void ShelfDelegateMus::SetAutoHideBehavior(
     mash::shelf::mojom::AutoHideBehavior auto_hide) {
   ShelfAutoHideBehavior value = static_cast<ShelfAutoHideBehavior>(auto_hide);
   Shell::GetInstance()->SetShelfAutoHideBehavior(value,
                                                  Shell::GetPrimaryRootWindow());
 }
 
@@ skipping 145 matching lines @@
   StatusAreaWidget* status_widget = widget->status_area_widget();
   mus::Window* status_window =
       aura::GetMusWindow(status_widget->GetNativeWindow());
   gfx::Size status_size = status_widget->GetWindowBoundsInScreen().size();
   status_window->SetSharedProperty<gfx::Size>(
       mus::mojom::WindowManager::kPreferredSize_Property, status_size);
 }
 
 }  // namespace sysui
 }  // namespace ash