Only (and always) put URLs in NSLinkAttributeName.

chrome/browser/ui/cocoa/extensions/extension_installed_bubble_controller.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/extensions/extension_installed_bubble_controller.h"
 
 #include "base/i18n/rtl.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 354 matching lines @@
 
     NSString* link(l10n_util::GetNSStringWithFixup(
         IDS_EXTENSION_INSTALLED_SIGNIN_PROMO_LINK));
     NSString* message(l10n_util::GetNSStringWithFixup(
         IDS_EXTENSION_INSTALLED_SIGNIN_PROMO));
     message = [link stringByAppendingString:message];
 
     HyperlinkTextView* view = promo_.get();
     [view setMessage:message withFont:font messageColor:[NSColor blackColor]];
     [view addLinkRange:NSMakeRange(0, [link length])
-              withName:@""
+               withURL:@"about:blank"  // using a link here is bad ui
              linkColor:gfx::SkColorToCalibratedNSColor(
                            chrome_style::GetLinkColor())];
 
     // HACK! The TextView does not report correct height even after you stuff
     // it with text (it tells you it is single-line even if it is multiline), so
     // here the hidden howToUse_ TextField is temporarily repurposed to
     // calculate the correct height for the TextView.
     [[howToUse_ cell] setAttributedStringValue:[promo_ attributedString]];
     [GTMUILocalizerAndLayoutTweaker
           sizeToFitFixedWidthTextField:howToUse_];
@@ skipping 222 matching lines @@
   install_ui->OpenAppInstalledUI([self extension]->id());
 }
 
 - (void)awakeFromNib {
   if (bundle_)
     return;
   [self initializeLabel];
 }
 
 @end