Get mouse events to work with win aura, and make the combobox function in the views examples app.

ui/views/widget/desktop_root_window_host_linux.h

 // Copyright (c) 2012 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_VIEWS_WIDGET_DESKTOP_ROOT_WINDOW_HOST_LINUX_H_
 #define UI_VIEWS_WIDGET_DESKTOP_ROOT_WINDOW_HOST_LINUX_H_
 
 #include "base/basictypes.h"
 #include "ui/views/widget/desktop_root_window_host.h"
 
 namespace views {
 
 class DesktopRootWindowHostLinux : public DesktopRootWindowHost {
  public:
   DesktopRootWindowHostLinux();
   virtual ~DesktopRootWindowHostLinux();
 
  private:
   // Overridden from DesktopRootWindowHost:
   virtual void Init(aura::Window* content_window,
                     const Widget::InitParams& params) OVERRIDE;
+  virtual void Close() OVERRIDE;
+  virtual void CloseNow() OVERRIDE;
+  virtual aura::RootWindowHost* AsRootWindowHost() OVERRIDE;
   virtual void ShowWindowWithState(ui::WindowShowState show_state) OVERRIDE;
+  virtual bool IsVisible() const OVERRIDE;
+  virtual gfx::Rect GetClientAreaBoundsInScreen() const OVERRIDE;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopRootWindowHostLinux);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_DESKTOP_ROOT_WINDOW_HOST_LINUX_H_