[Eraser] First pass at removing the notification center panel.

ui/message_center/cocoa/status_item_view.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_MESSAGE_CENTER_COCOA_STATUS_ITEM_VIEW_H_
-#define UI_MESSAGE_CENTER_COCOA_STATUS_ITEM_VIEW_H_
-
-#import <AppKit/AppKit.h>
-
-#include "base/mac/scoped_block.h"
-#include "base/mac/scoped_nsobject.h"
-#include "ui/message_center/message_center_export.h"
-
-namespace message_center {
-
-// Callback block for when the status item is clicked.
-typedef void(^StatusItemClickedCallback)();
-
-}  // namespace message_center
-
-// This view is meant to be used with a NSStatusItem. It will fire a callback
-// when it is clicked. It draws a small icon and the unread count, if greater
-// than zero, to the icon's right. It can also paint the highlight background
-// pattern outside of a mouse event sequence, for when an attached window is
-// open.
-MESSAGE_CENTER_EXPORT
-@interface MCStatusItemView : NSView {
- @private
-  // The status item.
-  base::scoped_nsobject<NSStatusItem> statusItem_;
-
-  // Callback issued when the status item is clicked.
-  base::mac::ScopedBlock<message_center::StatusItemClickedCallback> callback_;
-
-  // The unread count number to be drawn next to the icon.
-  size_t unreadCount_;
-
-  // Whether or not we are to display the quiet mode version of the status icon.
-  BOOL quietMode_;
-
-  // Whether or not to force the highlight pattern to be drawn.
-  BOOL highlight_;
-
-  // Whether or not the view is currently handling mouse events and should
-  // draw the highlight pattern.
-  BOOL inMouseEventSequence_;
-}
-
-@property(copy, nonatomic) message_center::StatusItemClickedCallback callback;
-@property(nonatomic) BOOL highlight;
-
-// Designated initializer. Creates a new NSStatusItem in the system menubar.
-- (id)init;
-
-// Sets the unread count and quiet mode status of the icon.
-- (void)setUnreadCount:(size_t)unreadCount withQuietMode:(BOOL)quietMode;
-
-// Removes the status item from the menubar. Must be called to break the
-// retain cycle between self and the NSStatusItem view.
-- (void)removeItem;
-
-@end
-
-@interface MCStatusItemView (TestingAPI)
-
-- (size_t)unreadCount;
-
-@end
-
-#endif  // UI_MESSAGE_CENTER_COCOA_STATUS_ITEM_VIEW_H_