Map update check failure to "update server not available."

chrome/browser/cocoa/about_window_controller.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.
 
 #include "app/l10n_util_mac.h"
 #include "app/resource_bundle.h"
 #include "base/logging.h"
 #include "base/mac_util.h"
 #include "base/string_util.h"
 #include "base/sys_string_conversions.h"
@@ skipping 305 matching lines @@
 
     case kAutoupdateInstallFailed:
       recentShownInstallFailedStatus = YES;
 
       // Allow another chance.
       [updateNowButton_ setEnabled:YES];
 
       // Fall through.
 
     case kAutoupdateCheckFailed:
-      // TODO(mark): Keystone doesn't currently indicate when a check for
-      // updates failed.  Fix that.
       imageID = IDR_UPDATE_FAIL;
       message = l10n_util::GetNSStringFWithFixup(IDS_UPGRADE_ERROR,
                                                  IntToString16(status));
 
       break;
 
     default:
       NOTREACHED();
       return;
   }
@@ skipping 144 matching lines @@
   NSRange string_range = NSMakeRange(0, [legal_block length]);
   [legal_block addAttribute:NSFontAttributeName
                       value:[NSFont labelFontOfSize:11]
                       range:string_range];
 
   [legal_block endEditing];
   return legal_block;
 }
 
 @end  // @implementation AboutWindowController