Moves move logic into WM instead of WS

components/mus/example/wm/window_manager_impl.h

Index: components/mus/example/wm/window_manager_impl.h
diff --git a/components/mus/example/wm/window_manager_impl.h b/components/mus/example/wm/window_manager_impl.h
index 9edd5dbb1fabca2b65e9aecab0438c9dbf0d826c..51b315d5a1be5385f22ef0cca4397a5c7a7852b5 100644
--- a/components/mus/example/wm/window_manager_impl.h
+++ b/components/mus/example/wm/window_manager_impl.h
@@ -12,6 +12,7 @@
 #include "components/mus/public/cpp/window_observer.h"
 #include "components/mus/public/interfaces/window_manager.mojom.h"
 
+class MoveLoop;
 class WindowManagerApplication;
 
 using WindowManagerErrorCodeCallback =
@@ -38,7 +39,12 @@ class WindowManagerImpl : public mus::mojom::WindowManager,
                     const WindowManagerErrorCodeCallback& callback) override;
   void GetDisplays(const GetDisplaysCallback& callback) override;
 
+  // mus::WindowObserver:
+  void OnWindowDestroyed(mus::Window* window) override;
+  void OnWindowInputEvent(mus::Window* window, const mojo::EventPtr& event);
+
   WindowManagerApplication* state_;
+  scoped_ptr<MoveLoop> move_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowManagerImpl);
 };