Fix issue 174250, crash when reloading packaged app.

chrome/browser/ui/cocoa/extensions/native_app_window_cocoa.mm

 // 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.
 
 #include "chrome/browser/ui/cocoa/extensions/native_app_window_cocoa.h"
 
+#include "base/bind.h"
 #include "base/mac/mac_util.h"
+#include "base/message_loop.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/cocoa/browser_window_utils.h"
 #import "chrome/browser/ui/cocoa/chrome_event_processing_window.h"
 #include "chrome/browser/ui/cocoa/extensions/extension_keybinding_registry_cocoa.h"
 #include "chrome/browser/ui/cocoa/extensions/extension_view_mac.h"
 #include "chrome/common/extensions/extension.h"
 #include "content/public/browser/native_web_keyboard_event.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
@@ skipping 654 matching lines @@
     return gfx::Insets();
   gfx::Rect frameRect(NSRectToCGRect([window() frame]));
   gfx::Rect contentRect(
       NSRectToCGRect([window() contentRectForFrameRect:[window() frame]]));
   return frameRect.InsetsFrom(contentRect);
 }
 
 void NativeAppWindowCocoa::WindowWillClose() {
   [window_controller_ setAppWindow:NULL];
   shell_window_->OnNativeWindowChanged();
-  shell_window_->OnNativeClose();
+  // On other platforms, the native window doesn't get destroyed synchronously.
+  // We simulate that here so that ShellWindow can assume that it doesn't get
+  // deleted immediately upon calling Close().
+  MessageLoop::current()->PostTask(
+      FROM_HERE,
+      base::Bind(&ShellWindow::OnNativeClose,
+                 base::Unretained(shell_window_)));
 }
 
 void NativeAppWindowCocoa::WindowDidBecomeKey() {
   content::RenderWidgetHostView* rwhv =
       web_contents()->GetRenderWidgetHostView();
   if (rwhv)
     rwhv->SetActive(true);
 }
 
 void NativeAppWindowCocoa::WindowDidResignKey() {
@@ skipping 65 matching lines @@
   CHECK(!window || [window isKindOfClass:[ShellNSWindow class]]);
   return static_cast<ShellNSWindow*>(window);
 }
 
 // static
 NativeAppWindow* NativeAppWindow::Create(
     ShellWindow* shell_window,
     const ShellWindow::CreateParams& params) {
   return new NativeAppWindowCocoa(shell_window, params);
 }