Mac: Make bubble windows (not their controller) responsible for calling removeChildWindow

chrome/browser/ui/cocoa/info_bubble_window.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.
 
 #import "chrome/browser/ui/cocoa/info_bubble_window.h"
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/mac/scoped_nsobject.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 167 matching lines @@
   // |finishCloseAfterAnimation|.
   [NSAnimationContext beginGrouping];
   [[NSAnimationContext currentContext] setDuration:kMinimumTimeInterval];
   [[self animator] setAlphaValue:0.0];
   [NSAnimationContext endGrouping];
 }
 
 // Called by InfoBubbleWindowCloser when the window is to be really closed
 // after the fading animation is complete.
 - (void)finishCloseAfterAnimation {
-  if (closing_)
+  if (closing_) {
+    [[self parentWindow] removeChildWindow:self];
     [super close];
+  }
 }
 
 // Adds animation for info bubbles being ordered to the front.
 - (void)orderWindow:(NSWindowOrderingMode)orderingMode
          relativeTo:(NSInteger)otherWindowNumber {
   // According to the documentation '0' is the otherWindowNumber when the window
   // is ordered front.
   if (orderingMode == NSWindowAbove && otherWindowNumber == 0) {
     // Order self appropriately assuming that its alpha is zero as set up
     // in the designated initializer.
@@ skipping 27 matching lines @@
 - (void)sendEvent:(NSEvent*)theEvent {
   if (!closing_)
     [super sendEvent:theEvent];
 }
 
 - (BOOL)isClosing {
   return closing_;
 }
 
 @end