Make startup_tests build and work on Mac.

chrome/browser/browser.scons

 # Copyright (c) 2006-2008 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('env')
 
 env = env.Clone()
 
 env.SConscript([
     '$CHROME_DIR/third_party/hunspell/using_hunspell.scons',
@@ skipping 200 matching lines @@
     'window_sizer.cc',
     'window_sizer.h',
   ]),
   MSVSFilter('Automation', [
     'automation/automation_autocomplete_edit_tracker.h',
     'automation/automation_browser_tracker.h',
     'automation/automation_constrained_window_tracker.h',
     'automation/automation_provider.cc',
     'automation/automation_provider.h',
     'automation/automation_provider_list.cc',
+    'automation/automation_provider_list_generic.cc',
+    'automation/automation_provider_list_mac.mm',
     'automation/automation_provider_list.h',
     'automation/automation_resource_tracker.cc',
     'automation/automation_resource_tracker.h',
     'automation/automation_tab_tracker.h',
     'automation/automation_window_tracker.h',
     'automation/ui_controls.cc',
     'automation/ui_controls.h',
     'automation/url_request_failed_dns_job.cc',
     'automation/url_request_failed_dns_job.h',
     'automation/url_request_mock_http_job.cc',
@@ skipping 540 matching lines @@
       'tab_contents/web_contents_view_gtk.cc',
       'tab_contents/render_view_context_menu_gtk.cc',
   ])
 
 if env.Bit('mac'):
   input_files.Remove(
       'spellchecker.cc',
       'tab_contents/web_contents_view.cc',
   )
 
+if not env.Bit('mac'):
+  # Mac-specific files
+  input_files.Remove(
+      'automation/automation_provider_list_mac.mm',
+  )
+
 if env.Bit('windows'):
   env.TypeLibrary('history/history_indexer.idl')
 
   input_files.Remove(
       'history/history_publisher_none.cc',
       'importer/firefox_profile_lock_posix.cc',
   )
 
 if not env.Bit('mac'):
   # TODO: This should work for all platforms.
@@ skipping 92 matching lines @@
 
 xmldoc_tool_list = [
     MSVSTool('VCCLCompilerTool',
              XMLDocumentationFileName=('$(IntDir)/$(InputName)1.xdc'),
              ObjectFile='$(IntDir)/$(InputName)1.obj'),
 ]
 
 for filename in xmldoc_files:
   p.AddFileConfig(filename, 'Debug|Win32', xmldoc_tool_list)
   p.AddFileConfig(filename, 'Release|Win32', xmldoc_tool_list)