Enable CursorManager::LockCursor to lock cursor visibility.

ash/shell.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 ASH_SHELL_H_
 #define ASH_SHELL_H_
 
 #include <utility>
 #include <vector>
 
 #include "ash/ash_export.h"
 #include "ash/system/user/login_status.h"
-#include "ash/wm/cursor_delegate.h"
 #include "ash/wm/cursor_manager.h"
 #include "ash/wm/shelf_types.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/size.h"
 
@@ skipping 81 matching lines @@
 class VisibilityController;
 class WindowModalityController;
 class WorkspaceController;
 }
 
 // Shell is a singleton object that presents the Shell API and implements the
 // RootWindow's delegate interface.
 //
 // Upon creation, the Shell sets itself as the RootWindow's delegate, which
 // takes ownership of the Shell.
-class ASH_EXPORT Shell : ash::CursorDelegate {
+class ASH_EXPORT Shell {
  public:
   typedef std::vector<aura::RootWindow*> RootWindowList;
   typedef std::vector<internal::RootWindowController*> RootWindowControllerList;
 
   enum Direction {
     FORWARD,
     BACKWARD
   };
 
   // Accesses private data from a Shell for testing.
@@ skipping 251 matching lines @@
 
   // Initializes the root window and root window controller so that it
   // can host browser windows.
   void InitRootWindowController(internal::RootWindowController* root);
 
   // Initializes the layout managers and event filters specific for
   // primary display.
   void InitLayoutManagersForPrimaryDisplay(
       internal::RootWindowController* root_window_controller);
 
-  // aura::CursorManager::Delegate overrides:
-  virtual void SetCursor(gfx::NativeCursor cursor) OVERRIDE;
-  virtual void ShowCursor(bool visible) OVERRIDE;
-
   static Shell* instance_;
 
   // If set before the Shell is initialized, the mouse cursor will be hidden
   // when the screen is initially created.
   static bool initially_hide_cursor_;
 
   ScreenAsh* screen_;
 
   // Active root window. Never becomes NULL during the session.
   aura::RootWindow* active_root_window_;
@@ skipping 87 matching lines @@
 
   // Used by ash/shell.
   content::BrowserContext* browser_context_;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_