aura-mus: Implement Deactivate().

services/ui/demo/mus_demo.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 SERVICES_UI_DEMO_MUS_DEMO_H_
 #define SERVICES_UI_DEMO_MUS_DEMO_H_
 
 #include <map>
 #include <memory>
 #include <set>
@@ skipping 80 matching lines @@
                                        const ui::Event& event) override;
   void OnWmPerformMoveLoop(aura::Window* window,
                            ui::mojom::MoveLoopSource source,
                            const gfx::Point& cursor_location,
                            const base::Callback<void(bool)>& on_done) override;
   void OnWmCancelMoveLoop(aura::Window* window) override;
   void OnWmSetClientArea(
       aura::Window* window,
       const gfx::Insets& insets,
       const std::vector<gfx::Rect>& additional_client_areas) override;
+  bool IsWindowActive(aura::Window* window) override;
+  void OnWmDeactivateWindow(aura::Window* window) override;
 
   // Draws one frame, incrementing the rotation angle.
   void DrawFrame();
 
   aura::Window* root_window_ = nullptr;
   std::unique_ptr<aura::WindowTreeClient> window_tree_client_;
   std::unique_ptr<aura::WindowTreeHostMus> window_tree_host_;
   std::unique_ptr<ui::Gpu> gpu_;
   std::unique_ptr<ui::ContextFactory> context_factory_;
   std::unique_ptr<aura::Env> env_;
@@ skipping 18 matching lines @@
   // Last time a frame was drawn.
   base::TimeTicks last_draw_frame_time_;
 
   DISALLOW_COPY_AND_ASSIGN(MusDemo);
 };
 
 }  // namespace demo
 }  // namespace aura
 
 #endif  // SERVICES_UI_DEMO_MUS_DEMO_H_