[Mac] Fix for Dialog Textfields

chrome/browser/ui/cocoa/bookmarks/bookmark_editor_controller.mm

 // Copyright (c) 2011 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/bookmarks/bookmark_editor_controller.h"
 
 #include "base/strings/string16.h"
 #include "base/strings/sys_string_conversions.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/bookmarks/bookmark_utils.h"
@@ skipping 64 matching lines @@
     if (url.is_valid())
       initialUrl_.reset([[NSString stringWithUTF8String:url.spec().c_str()]
                           retain]);
   }
   [self setDisplayURL:initialUrl_];
   [super awakeFromNib];
   [self expandNodes:
       [self bookmarkModel]->expanded_state_tracker()->GetExpandedNodes()];
 }
 
+- (void)windowWillClose:(NSNotification*)notification {
+  // Force the field editors to resign the first responder so that they'll
+  // be removed from the view hierarchy and its delegate be set to nil.
+  [[self window] endEditingFor:urlField_];
+  [[self window] endEditingFor:nameTextField_];
+
+  [super windowWillClose:notification];
+}
+
 - (id)windowWillReturnFieldEditor:(NSWindow*)sender toObject:(id)obj {
   if (obj == urlField_) {
     if (!urlFieldEditor_)
       urlFieldEditor_.reset([[DialogTextFieldEditor alloc] init]);
-
-    return urlFieldEditor_.autorelease();
+    return urlFieldEditor_.get();
   } else if (obj == nameTextField_) {
     if (!nameFieldEditor_)
       nameFieldEditor_.reset([[DialogTextFieldEditor alloc] init]);
 
-    return nameFieldEditor_.autorelease();
+    return nameFieldEditor_.get();
   }
 
   return nil;
 }
 
 - (void)nodeRemoved:(const BookmarkNode*)node
          fromParent:(const BookmarkNode*)parent
 {
   // Be conservative; it is needed (e.g. "Add Page...")
   node_ = NULL;
@@ skipping 66 matching lines @@
       SetExpandedNodes(expanded_nodes);
   return [NSNumber numberWithBool:YES];
 }
 
 - (NSColor *)urlFieldColor {
   return [urlField_ backgroundColor];
 }
 
 @end  // BookmarkEditorController