Aura desktop: Show resize cursors again.

ui/aura/cursor_manager.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_AURA_CURSOR_MANAGER_H_
-#define UI_AURA_CURSOR_MANAGER_H_
-
-#include "base/basictypes.h"
-#include "ui/aura/aura_export.h"
-#include "ui/gfx/native_widget_types.h"
-
-namespace aura {
-class CursorDelegate;
-
-// This class controls the visibility and the type of the cursor.
-// The cursor type can be locked so that the type stays the same
-// until it's unlocked.
-class AURA_EXPORT CursorManager {
- public:
-  CursorManager();
-  ~CursorManager();
-
-  void set_delegate(CursorDelegate* delegate) { delegate_ = delegate; }
-
-  // Locks/Unlocks the cursor change.
-  void LockCursor();
-  void UnlockCursor();
-
-  bool is_cursor_locked() const { return cursor_lock_count_ > 0; }
-
-  void SetCursor(gfx::NativeCursor);
-
-  // Shows or hides the cursor.
-  void ShowCursor(bool show);
-  bool cursor_visible() const { return cursor_visible_; }
-
- private:
-  CursorDelegate* delegate_;
-
-  // Number of times LockCursor() has been invoked without a corresponding
-  // UnlockCursor().
-  int cursor_lock_count_;
-
-  // Set to true if UpdateCursor() is invoked while |cursor_lock_count_| == 0.
-  bool did_cursor_change_;
-
-  // Cursor to set once |cursor_lock_count_| is set to 0. Only valid if
-  // |did_cursor_change_| is true.
-  gfx::NativeCursor cursor_to_set_on_unlock_;
-
-  // Is cursor visible?
-  bool cursor_visible_;
-
-  DISALLOW_COPY_AND_ASSIGN(CursorManager);
-};
-
-}  // namespace aura
-
-#endif  // UI_AURA_CURSOR_MANAGER_H_