Relax the character limits before resorting to eTLD+1

chrome/browser/notifications/notification_platform_bridge_mac.mm

 // Copyright 2015 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 "chrome/browser/notifications/notification_platform_bridge_mac.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 129 matching lines @@
 
   // Mac OS notifications don't provide a good way to elide the domain (or tell
   // you the maximum width of the subtitle field). We have experimentally
   // determined the maximum number of characters that fit using the widest
   // possible character (m). If the domain fits in those character we show it
   // completely. Otherwise we use eTLD + 1.
 
   // These numbers have been obtained through experimentation on various
   // Mac OS platforms.
 
-  // Corresponds to the string "mmmmmmmmmmmmmm"
-  constexpr size_t kMaxDomainLenghtAlert = 14;
-
-  // Corresponds to the string "mmmmmmmmmmmmmmmmmmmmm"
-  constexpr size_t kMaxDomainLenghtBanner = 21;
+  constexpr size_t kMaxDomainLenghtAlert = 19;
+  constexpr size_t kMaxDomainLenghtBanner = 28;
 
   size_t max_characters = IsPersistentNotification(notification)
                               ? kMaxDomainLenghtAlert
                               : kMaxDomainLenghtBanner;
 
   base::string16 origin = url_formatter::FormatOriginForSecurityDisplay(
       url::Origin(notification.origin_url()),
       url_formatter::SchemeDisplay::OMIT_HTTP_AND_HTTPS);
 
   if (origin.size() <= max_characters)
@@ skipping 433 matching lines @@
     base::scoped_nsobject<CrXPCMachPort> xpcPort(
         [[CrXPCMachPort alloc] initWithMachSendRight:std::move(exceptionPort)]);
     [proxy setMachExceptionPort:xpcPort];
     setExceptionPort_ = YES;
   }
 
   return proxy;
 }
 
 @end