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

ui/message_center/cocoa/tray_controller.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_TRAY_CONTROLLER_H_
-#define UI_MESSAGE_CENTER_COCOA_TRAY_CONTROLLER_H_
-
-#import <AppKit/AppKit.h>
-
-#include "base/basictypes.h"
-#include "base/mac/scoped_nsobject.h"
-#include "ui/message_center/message_center_export.h"
-
-@class MCTrayViewController;
-
-namespace message_center {
-class MessageCenterTray;
-}
-
-// The window controller for the message center tray. This merely hosts the
-// view from MCTrayViewController.
-MESSAGE_CENTER_EXPORT
-@interface MCTrayController : NSWindowController<NSWindowDelegate> {
- @private
-  message_center::MessageCenterTray* tray_;  // Weak, indirectly owns this.
-
-  // View controller that provides this window's content.
-  base::scoped_nsobject<MCTrayViewController> viewController_;
-
-  // An event monitor that listens for clicks outside the tray window to cause
-  // it to close.
-  id clickEventMonitor_;
-}
-
-@property(readonly, nonatomic) MCTrayViewController* viewController;
-
-// Designated initializer.
-- (id)initWithMessageCenterTray:(message_center::MessageCenterTray*)tray;
-
-// Opens the message center tray to either the right or left of the given
-// points, depending on if it will fit on screen. It will try opening to the
-// right first, but if the window does not fit on screen, it will open to the
-// left.
-- (void)showTrayAtRightOf:(NSPoint)rightPoint atLeftOf:(NSPoint)leftPoint;
-
-// Callback from MessageCenterTrayDelegate, used to update the tray content.
-- (void)onMessageCenterTrayChanged;
-
-@end
-
-#endif  // UI_MESSAGE_CENTER_COCOA_TRAY_CONTROLLER_H_