Start consolidating cross-port file selection code into ui/base/dialogs.

chrome/browser/ui/views/user_data_dir_dialog_view.cc

Index: chrome/browser/ui/views/user_data_dir_dialog_view.cc
diff --git a/chrome/browser/ui/views/user_data_dir_dialog_view.cc b/chrome/browser/ui/views/user_data_dir_dialog_view.cc
index a0e7128c1631df721d22318985a71558a42aa851..b5fa5d6c4450ac7c200ba350ff8013e3733c1ceb 100644
--- a/chrome/browser/ui/views/user_data_dir_dialog_view.cc
+++ b/chrome/browser/ui/views/user_data_dir_dialog_view.cc
@@ -6,6 +6,7 @@
 
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
+#include "chrome/browser/ui/chrome_select_file_policy.h"
 #include "chrome/browser/ui/user_data_dir_dialog.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
@@ -15,7 +16,8 @@
 
 UserDataDirDialogView::UserDataDirDialogView(const FilePath& user_data_dir)
     : ALLOW_THIS_IN_INITIALIZER_LIST(
-          select_file_dialog_(SelectFileDialog::Create(this))),
+          select_file_dialog_(SelectFileDialog::Create(
+              this, new ChromeSelectFilePolicy(NULL)))),
       is_blocking_(true) {
   const int kDialogWidth = 400;
   views::MessageBoxView::InitParams params(
@@ -60,7 +62,7 @@ bool UserDataDirDialogView::Accept() {
       GetAncestor(message_box_view_->GetWidget()->GetNativeView(), GA_ROOT);
   select_file_dialog_->SelectFile(SelectFileDialog::SELECT_FOLDER,
                                   dialog_title, FilePath(), NULL, 0,
-                                  std::wstring(), NULL, owning_hwnd, NULL);
+                                  FilePath::StringType(), owning_hwnd, NULL);
   return false;
 }