More NativeWidget -> Widget notifications: visibility, minimize.

ui/views/cocoa/views_nswindow_delegate.h

 // Copyright 2014 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_COCOA_VIEWS_NSWINDOW_DELEGATE_H_
 #define UI_VIEWS_COCOA_VIEWS_NSWINDOW_DELEGATE_H_
 
 #import <Cocoa/Cocoa.h>
 
 namespace views {
@@ skipping 15 matching lines @@
 // Initialize with the given |parent|.
 - (id)initWithBridgedNativeWidget:(views::BridgedNativeWidget*)parent;
 
 // Notify that the window is about to be reordered on screen. This ensures a
 // paint will occur, even if Cocoa has not yet updated the window visibility.
 - (void)onWindowOrderWillChange:(NSWindowOrderingMode)orderingMode;
 
 // Notify that the window has been reordered in (or removed from) the window
 // server's screen list. This is a substitute for -[NSWindowDelegate
 // windowDidExpose:], which is only sent for nonretained windows (those without
-// a backing store).
-- (void)onWindowOrderChanged;
+// a backing store). |notification| is optional and can be set when redirecting
+// a notification such as NSApplicationDidHideNotification.
+- (void)onWindowOrderChanged:(NSNotification*)notification;
 
 @end
 
 #endif  // UI_VIEWS_COCOA_VIEWS_NSWINDOW_DELEGATE_H_