First cut at Firefox import on OSX + stubs for Safari import.

chrome/chrome.gyp

 # Copyright (c) 2009 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': {
     'chromium_code': 1,
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
     # the link of the actual chrome (or chromium) executable on
@@ skipping 1214 matching lines @@
         'browser/icon_manager_mac.mm',
         'browser/icon_manager_win.cc',
         'browser/ime_input.cc',
         'browser/ime_input.h',
         'browser/importer/firefox2_importer.cc',
         'browser/importer/firefox2_importer.h',
         'browser/importer/firefox3_importer.cc',
         'browser/importer/firefox3_importer.h',
         'browser/importer/firefox_importer_utils.cc',
         'browser/importer/firefox_importer_utils_linux.cc',
-        'browser/importer/firefox_importer_utils_mac.cc',
+        'browser/importer/firefox_importer_utils_mac.mm',
         'browser/importer/firefox_importer_utils_win.cc',
         'browser/importer/firefox_importer_utils.h',
         'browser/importer/firefox_profile_lock.cc',
         'browser/importer/firefox_profile_lock.h',
         'browser/importer/firefox_profile_lock_posix.cc',
         'browser/importer/firefox_profile_lock_win.cc',
         'browser/importer/ie_importer.cc',
         'browser/importer/ie_importer.h',
         'browser/importer/importer.cc',
         'browser/importer/importer.h',
         'browser/importer/mork_reader.cc',
         'browser/importer/mork_reader.h',
         'browser/importer/nss_decryptor.cc',
         'browser/importer/nss_decryptor.h',
         'browser/importer/nss_decryptor_linux.cc',
         'browser/importer/nss_decryptor_linux.h',
         'browser/importer/nss_decryptor_mac.h',
+        'browser/importer/nss_decryptor_mac.mm',
         'browser/importer/nss_decryptor_win.cc',
         'browser/importer/nss_decryptor_win.h',
         'browser/importer/toolbar_importer.cc',
         'browser/importer/toolbar_importer.h',
         'browser/in_process_webkit/browser_webkitclient_impl.cc',
         'browser/in_process_webkit/browser_webkitclient_impl.h',
         'browser/in_process_webkit/dom_storage_dispatcher_host.cc',
         'browser/in_process_webkit/dom_storage_dispatcher_host.h',
         'browser/in_process_webkit/webkit_context.cc',
         'browser/in_process_webkit/webkit_context.h',
@@ skipping 2701 matching lines @@
           'include_dirs': [
             '../third_party/GTM',
             '../third_party/GTM/AppKit',
           ],
           'sources!': [
             'browser/views/bookmark_context_menu_test.cc',
             'browser/back_forward_menu_model_unittest.cc',
             'browser/download/download_manager_unittest.cc',
             'browser/gtk/go_button_gtk_unittest.cc',
             'browser/gtk/tabs/tab_renderer_gtk_unittest.cc',
-            'browser/importer/firefox_importer_unittest.cc',
             'browser/tab_contents/navigation_controller_unittest.cc',
             'browser/task_manager_unittest.cc',
             'third_party/hunspell/google/hunspell_tests.cc',
 
             # Compact Language Detection (cld) is not supported in mac yet.
             '../third_party/cld/bar/toolbar/cld/i18n/encodings/compact_lang_det/compact_lang_det_unittest_small.cc',
           ],
           # TODO(mark): We really want this for all non-static library targets,
           # but when we tried to pull it up to the common.gypi level, it broke
           # other things like the ui, startup, and page_cycler tests. *shrug*
@@ skipping 1190 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],
   ],  # 'conditions'
 }