Make the cursor have separate mode for disabled mouse events and invisible.

ui/views/widget/desktop_aura/desktop_cursor_client.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_AURA_DESKTOP_CURSOR_CLIENT_H_
 #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_CURSOR_CLIENT_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/aura/client/cursor_client.h"
@@ skipping 13 matching lines @@
 // ash, which interacts with all the RootWindows.)
 class VIEWS_EXPORT DesktopCursorClient : public aura::client::CursorClient {
  public:
   explicit DesktopCursorClient(aura::RootWindow* window);
   virtual ~DesktopCursorClient();
 
   // Overridden from client::CursorClient:
   virtual void SetCursor(gfx::NativeCursor cursor) OVERRIDE;
   virtual void ShowCursor(bool show) OVERRIDE;
   virtual bool IsCursorVisible() const OVERRIDE;
+  virtual void EnableCursor(bool enabled) OVERRIDE;
   virtual void SetDeviceScaleFactor(float device_scale_factor) OVERRIDE;
   virtual void LockCursor() OVERRIDE;
   virtual void UnlockCursor() OVERRIDE;
 
  private:
   aura::RootWindow* root_window_;
   scoped_ptr<ui::CursorLoader> cursor_loader_;
 
   gfx::NativeCursor current_cursor_;
   bool cursor_visible_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopCursorClient);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_CURSOR_CLIENT_H_