Merge 33291 - Clear the target/action of the close button when the view goes ...

chrome/browser/cocoa/tab_view.mm

 // 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 "chrome/browser/cocoa/tab_view.h"
 
 #include "base/logging.h"
 #include "base/nsimage_cache_mac.h"
 #import "chrome/browser/cocoa/tab_controller.h"
 #import "chrome/browser/cocoa/tab_window_controller.h"
@@ skipping 791 matching lines @@
   [NSMenu popUpContextMenu:[self menu] withEvent:theEvent forView:self];
 }
 
 - (void)viewDidMoveToWindow {
   [super viewDidMoveToWindow];
   if ([self window]) {
     [controller_ updateTitleColor];
   }
 }
 
+- (void)setIsClosing:(BOOL)closing {
+  isClosing_ = closing;
+  // When closing, ensure clicks to the close button go nowhere.
+  if (closing) {
+    [closeButton_ setTarget:nil];
+    [closeButton_ setAction:nil];
+  }
+}
+
 @end