Use a PDF for the upgrade dot....

chrome/chrome_dll.gypi

 # 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.
 {
   'target_defaults': {
     'variables': {
       'chrome_dll_target': 0,
     },
     'target_conditions': [
       ['chrome_dll_target==1', {
@@ skipping 253 matching lines @@
                 'app/theme/omnibox_https_warning.pdf',
                 'app/theme/omnibox_more.pdf',
                 'app/theme/omnibox_search.pdf',
                 'app/theme/omnibox_star.pdf',
                 'app/theme/omnibox_star_lit.pdf',
                 'app/theme/otr_icon.pdf',
                 'app/theme/popup_window_animation.pdf',
                 'app/theme/reload_Template.pdf',
                 'app/theme/stop_Template.pdf',
                 'app/theme/tools_Template.pdf',
+                'app/theme/upgrade_dot.pdf',
                 'browser/cocoa/install.sh',
               ],
               'mac_bundle_resources!': [
                 'app/framework-Info.plist',
               ],
               'dependencies': [
                 # Bring in pdfsqueeze and run it on all pdfs
                 '../build/temp_gyp/pdfsqueeze.gyp:pdfsqueeze',
                 '../build/util/support/support.gyp:*',
                 # On Mac, Flash gets put into the framework, so we need this
@@ skipping 311 matching lines @@
           'configurations': {
             'Common_Base': {
               'msvs_target_platform': 'x64',
             },
           },
         },  # target chrome_dll
       ],
     }],
   ],
 }