Revert 201837 "OOP import on Windows."

trunk/src/chrome/utility/profile_import_handler.cc

Index: trunk/src/chrome/utility/profile_import_handler.cc
===================================================================
--- trunk/src/chrome/utility/profile_import_handler.cc	(revision 201967)
+++ trunk/src/chrome/utility/profile_import_handler.cc	(working copy)
@@ -49,10 +49,9 @@
 
   // Create worker thread in which importer runs.
   import_thread_.reset(new base::Thread("import_thread"));
-#if defined(OS_WIN)
-  import_thread_->init_com_with_mta(false);
-#endif
-  if (!import_thread_->Start()) {
+  base::Thread::Options options;
+  options.message_loop_type = base::MessageLoop::TYPE_IO;
+  if (!import_thread_->StartWithOptions(options)) {
     NOTREACHED();
     ImporterCleanup();
   }