Cleanup a bunch of TODO(shess).

chrome/browser/cocoa/autocomplete_text_field_editor.mm

 // Copyright (c) 2010 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/autocomplete_text_field_editor.h"
 
 #include "app/l10n_util_mac.h"
 #include "base/string_util.h"
 #include "grit/generated_resources.h"
 #include "base/sys_string_conversions.h"
@@ skipping 244 matching lines @@
   // Ctrl-Alt- or Ctrl-Q).  Making this generally efficient would
   // probably be a loss, since the input always seems to be a single
   // character.
   NSRange range = [aString rangeOfCharacterFromSet:forbiddenCharacters_];
   while (range.location != NSNotFound) {
     aString = [aString stringByReplacingCharactersInRange:range withString:@""];
     range = [aString rangeOfCharacterFromSet:forbiddenCharacters_];
   }
   DCHECK_EQ(range.length, 0U);
 
-  // TODO(shess): Beep on empty?  I hate beeps, though.
   // NOTE: If |aString| is empty, this intentionally replaces the
   // selection with empty.  This seems consistent with the case where
   // the input contained a mixture of characters and the string ended
   // up not empty.
   [super insertText:aString];
 }
 
 - (void)setMarkedText:(id)aString selectedRange:(NSRange)selRange {
   [super setMarkedText:aString selectedRange:selRange];
 
@@ skipping 33 matching lines @@
   DCHECK(textStorage);
   [textStorage setAttributedString:aString];
 
   // The text has been changed programmatically. The observer should know
   // this change, so setting |textChangedByKeyEvents_| to NO to
   // prevent its OnDidChange() method from being called unnecessarily.
   textChangedByKeyEvents_ = NO;
 }
 
 @end