Make firefox_importer_utils.cc compile on Posix.

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 672 matching lines @@
       'hang_monitor/hung_window_detector.cc',
       'history_tab_ui.cc',
       'history_view.cc',
       'icon_loader.cc',
       'icon_manager.cc',
       'ime_input.cc',
       # Hold off on firefox[23]_importer.cc until importer.cc has been ported.
       # Otherwise shared link builds won't work on Linux.
       'importer/firefox2_importer.cc',
       'importer/firefox3_importer.cc',
-      'importer/firefox_importer_utils.cc',
       'importer/ie_importer.cc',
       'importer/toolbar_importer.cc',
       'jankometer.cc',
       'login_prompt.cc',
       'memory_details.cc',
       'modal_html_dialog_delegate.cc',
       'google_update.cc',
       'password_manager/encryptor.cc',
       'printing/page_overlays.cc',
       'printing/print_job.cc',
@@ skipping 171 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)