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diff --git a/chrome/browser/app_controller_mac.mm b/chrome/browser/app_controller_mac.mm
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+// Copyright (c) 2009 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.
+
+#import "app_controller_mac.h"
+
+#import "base/message_loop.h"
+
+@implementation AppController
+
+// We can't use the standard terminate: method because it will abrubptly exit
+// the app and leave things on the stack in an unfinalized state. We need to
+// post a quit message to our run loop so the stack can gracefully unwind.
+- (IBAction)quit:(id)sender {
+  // TODO(pinkerton):
+  // since we have to roll it ourselves, ask the delegate (ourselves, really)
+  // if we should terminate. For example, we might not want to if the user
+  // has ongoing downloads or multiple windows/tabs open. However, this would
+  // require posting UI and may require spinning up another run loop to 
+  // handle it. If it says to continue, post the quit message, otherwise
+  // go back to normal.
+  
+  MessageLoopForUI::current()->Quit();
+}
+
+
+@end