Cleanup shelf initialization and observation.

ash/mus/shelf_delegate_mus.h

 // 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.
 
 #ifndef ASH_MUS_SHELF_DELEGATE_MUS_H_
 #define ASH_MUS_SHELF_DELEGATE_MUS_H_
 
 #include <map>
 
 #include "ash/shelf/shelf_delegate.h"
 #include "mash/wm/public/interfaces/user_window_controller.mojom.h"
 #include "mojo/public/cpp/bindings/binding.h"
 
 namespace ash {
 
 class ShelfModel;
 
 namespace sysui {
 
 class ShelfDelegateMus : public ShelfDelegate,
                          public mash::wm::mojom::UserWindowObserver {
  public:
   explicit ShelfDelegateMus(ShelfModel* model);
   ~ShelfDelegateMus() override;
 
  private:
   // ShelfDelegate:
   void OnShelfCreated(Shelf* shelf) override;
   void OnShelfDestroyed(Shelf* shelf) override;
+  void OnShelfAlignmentChanged(Shelf* shelf) override;
+  void OnShelfAutoHideBehaviorChanged(Shelf* shelf) override;
   ShelfID GetShelfIDForAppID(const std::string& app_id) override;
   bool HasShelfIDToAppIDMapping(ShelfID id) const override;
   const std::string& GetAppIDForShelfID(ShelfID id) override;
   void PinAppWithID(const std::string& app_id) override;
   bool IsAppPinned(const std::string& app_id) override;
   void UnpinAppWithID(const std::string& app_id) override;
 
   // mash::wm::mojom::UserWindowObserver:
   void OnUserWindowObserverAdded(
       mojo::Array<mash::wm::mojom::UserWindowPtr> user_windows) override;
@@ skipping 11 matching lines @@
   mojo::Binding<mash::wm::mojom::UserWindowObserver> binding_;
   std::map<uint32_t, ShelfID> window_id_to_shelf_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ShelfDelegateMus);
 };
 
 }  // namespace sysui
 }  // namespace ash
 
 #endif  // ASH_MUS_SHELF_DELEGATE_MUS_H_