Cursor state should be global for desktop Aura

ui/views/widget/desktop_aura/desktop_cursor_loader_updater.h

 // Copyright (c) 2013 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_LOADER_UPDATER_H_
 #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_CURSOR_LOADER_UPDATER_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "ui/views/views_export.h"
 
@@ skipping 15 matching lines @@
 // desktop AuraX11.
 class VIEWS_EXPORT DesktopCursorLoaderUpdater {
  public:
   virtual ~DesktopCursorLoaderUpdater() {}
 
   // Creates a new DesktopCursorLoaderUpdater, or NULL if the platform doesn't
   // support one.
   static scoped_ptr<DesktopCursorLoaderUpdater> Create();
 
   // Called when a CursorLoader is created.
-  virtual void OnCreate(aura::RootWindow* window,
+  virtual void OnCreate(float device_scale_factor,
                         ui::CursorLoader* loader) = 0;
 
   // Called when the display has changed (as we may need to reload the cursor
   // assets in response to a device scale factor or rotation change).
   virtual void OnDisplayUpdated(const gfx::Display& display,
                                 ui::CursorLoader* loader) = 0;
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_DISPLAY_CHANGE_HANDLER_H_