Change Window visibility to a simple boolean for now.

ui/aura/window.h

 // Copyright (c) 2011 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 UI_AURA_WINDOW_H_
 #define UI_AURA_WINDOW_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 26 matching lines @@
 class RootWindow;
 }
 
 // Aura window implementation. Interesting events are sent to the
 // WindowDelegate.
 // TODO(beng): resolve ownership.
 class AURA_EXPORT Window : public ui::LayerDelegate {
  public:
   typedef std::vector<Window*> Windows;
 
-  enum Visibility {
-    // Don't display the window onscreen and don't let it receive mouse
-    // events. This is the default.
-    VISIBILITY_HIDDEN = 1,
-
-    // Display the window and let it receive mouse events.
-    VISIBILITY_SHOWN = 2,
-
-    // Display the window but prevent it from receiving mouse events.
-    VISIBILITY_SHOWN_NO_INPUT = 3,
-  };
-
   explicit Window(WindowDelegate* delegate);
   ~Window();
 
   void Init();
 
   int id() const { return id_; }
   void set_id(int id) { id_ = id; }
 
   const std::string& name() const { return name_; }
   void set_name(const std::string& name) { name_ = name; }
 
   ui::Layer* layer() { return layer_.get(); }
   const ui::Layer* layer() const { return layer_.get(); }
 
   // Changes the visibility of the window.
-  void SetVisibility(Visibility visibility);
-  Visibility visibility() const { return visibility_; }
+  void Show();
+  void Hide();
+  bool visible() const { return visible_; }
 
   // Assigns a LayoutManager to size and place child windows.
   // The Window takes ownership of the LayoutManager.
   void SetLayoutManager(LayoutManager* layout_manager);
 
   // Changes the bounds of the window.
   void SetBounds(const gfx::Rect& new_bounds);
   const gfx::Rect& bounds() const;
 
   // Marks the a portion of window as needing to be painted.
@@ skipping 72 matching lines @@
 
   // Returns an animation configured with the default duration. All animations
   // should use this. Caller owns returned value.
   static ui::Animation* CreateDefaultAnimation();
 
  protected:
   // Returns the RootWindow or NULL if we don't yet have a RootWindow.
   virtual internal::RootWindow* GetRoot();
 
  private:
+  // Updates the visible state of the layer, but does not make visible-state
+  // specific changes. Called from Show()/Hide().
+  void SetVisible(bool visible);
+
   // Schedules a paint for the Window's entire bounds.
   void SchedulePaint();
 
   // Overridden from ui::LayerDelegate:
   virtual void OnPaintLayer(gfx::Canvas* canvas) OVERRIDE;
 
   WindowDelegate* delegate_;
 
-  Visibility visibility_;
+  bool visible_;
 
   scoped_ptr<ui::Layer> layer_;
 
   // The Window's parent.
   // TODO(beng): Implement NULL-ness for toplevels.
   Window* parent_;
 
   // Child windows. Topmost is last.
   Windows children_;
 
   int id_;
   std::string name_;
 
   scoped_ptr<EventFilter> event_filter_;
   scoped_ptr<LayoutManager> layout_manager_;
 
   void* user_data_;
 
   DISALLOW_COPY_AND_ASSIGN(Window);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_WINDOW_H_