Proper MouseEvent targeting. Adds a Window method that locates a Window for a given point.

aura/desktop.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 AURA_DESKTOP_H_
 #define AURA_DESKTOP_H_
 #pragma once
 
-#include "aura/window.h"
+#include "aura/root_window.h"
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace gfx {
 class Size;
 }
 
 namespace ui {
 class Compositor;
 }
 
 namespace aura {
 
 class DesktopHost;
 class MouseEvent;
-class Window;
 
 // Desktop is responsible for hosting a set of windows.
 class Desktop {
  public:
   Desktop();
   ~Desktop();
 
+  // Shows the desktop host.
+  void Show();
+
+  // Sets the size of the desktop.
+  void SetSize(const gfx::Size& size);
+
   // Shows the desktop host and runs an event loop for it.
   void Run();
 
   // Draws the necessary set of windows.
   void Draw();
 
   // Handles a mouse event. Returns true if handled.
   bool OnMouseEvent(const MouseEvent& event);
 
   // Compositor we're drawing to.
   ui::Compositor* compositor() { return compositor_.get(); }
 
   Window* window() { return window_.get(); }
 
   static Desktop* GetInstance();
 
  private:
   scoped_refptr<ui::Compositor> compositor_;
 
-  scoped_ptr<Window> window_;
+  scoped_ptr<internal::RootWindow> window_;
 
   DesktopHost* host_;
 
   static Desktop* instance_;
 
   DISALLOW_COPY_AND_ASSIGN(Desktop);
 };
 
 }  // namespace aura
 
 #endif  // AURA_DESKTOP_H_