Only (and always) put URLs in NSLinkAttributeName.

chrome/browser/ui/cocoa/profiles/profile_signin_confirmation_view_controller.mm

 // Copyright 2014 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/profiles/profile_signin_confirmation_view_controller.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/callback_helpers.h"
@@ skipping 83 matching lines @@
       chrome_style::GetLinkColor());
   NSMutableString* finalMessage = [NSMutableString stringWithString:
                                              base::SysUTF16ToNSString(message)];
   NSString* linkString = base::SysUTF16ToNSString(link);
 
   [finalMessage insertString:linkString atIndex:offset];
   [textView setMessage:finalMessage
               withFont:font
           messageColor:[NSColor blackColor]];
   [textView addLinkRange:NSMakeRange(offset, [linkString length])
-                withName:@""
+                 withURL:@"about:blank"  // using a link here is bad ui
                linkColor:linkColor];
   RemoveUnderlining(textView, offset, link.size());
   [textView setDelegate:delegate];
   [parent addSubview:textView];
   return textView.autorelease();
 }
 
 // Create a new NSTextField and add it to the specified parent.
 NSTextField* AddTextField(
     NSView* parent,
@@ skipping 327 matching lines @@
 
 - (NSButton*)createProfileButton {
   return createProfileButton_.get();
 }
 
 - (NSTextView*)explanationField {
   return explanationField_.get();
 }
 
 @end