Mac: First steps for default plugin

webkit/glue/webkit_glue.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.
 
 {
   'variables': {
     'conditions': [
       ['inside_chromium_build==0', {
         'webkit_src_dir': '../../../..',
       },{
@@ skipping 348 matching lines @@
           'include_dirs': [
             '<(DEPTH)/third_party/wtl/include',
           ],
           'dependencies': [
             '<(DEPTH)/build/win/system.gyp:cygwin',
           ],
           'sources!': [
             'plugins/plugin_stubs.cc',
           ],
         }],
-        ['inside_chromium_build==1 and OS=="win"', {
+        ['inside_chromium_build==1 and (OS=="mac" or OS=="win")', {
           'dependencies': [
             '<(DEPTH)/webkit/default_plugin/default_plugin.gyp:default_plugin',
           ],
         }],
         ['inside_chromium_build==0', {
           'dependencies': [
             '<(DEPTH)/webkit/support/setup_third_party.gyp:third_party_headers',
           ],
         }],
       ],
     },
   ],
 }