Rewrite std::string("") to std::string(), Linux edition.

chrome/browser/ui/chrome_select_file_policy_unittest.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/chrome_select_file_policy.h"
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/message_loop.h"
 #include "base/prefs/pref_service.h"
@@ skipping 38 matching lines @@
 
     const base::FilePath file_path;
     const string16 title=string16();
 
     file_selection_initialisation_in_progress = true;
     select_file_dialog_->SelectFile(ui::SelectFileDialog::SELECT_OPEN_FILE,
                                     title,
                                     file_path,
                                     NULL,
                                     0,
-                                    FILE_PATH_LITERAL(""),
+                                    base::FilePath::StringType(),
                                     NULL,
                                     NULL);
     file_selection_initialisation_in_progress = false;
   }
 
   // ui::SelectFileDialog::Listener implementation.
   virtual void FileSelected(const base::FilePath& path,
                             int index, void* params) OVERRIDE{
     ASSERT_FALSE(file_selection_initialisation_in_progress);
   }
@@ skipping 26 matching lines @@
       TestingBrowserProcess::GetGlobal());
 
   scoped_ptr<FileSelectionUser> file_selection_user(new FileSelectionUser());
 
   // Disallow file-selection dialogs.
   local_state.Get()->SetManagedPref(prefs::kAllowFileSelectionDialogs,
                                     new base::FundamentalValue(false));
 
   file_selection_user->StartFileSelection();
 }