ui/shell_dialogs: Use base::string16 now that string16 was moved into base namespace.

ui/shell_dialogs/gtk/select_file_dialog_impl_gtk.cc

 // Copyright (c) 2013 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 <gtk/gtk.h>
 #include <map>
 #include <set>
 #include <vector>
 
 #include "base/file_util.h"
@@ skipping 31 matching lines @@
   explicit SelectFileDialogImplGTK(Listener* listener,
                                    ui::SelectFilePolicy* policy);
 
  protected:
   virtual ~SelectFileDialogImplGTK();
 
   // SelectFileDialog implementation.
   // |params| is user data we pass back via the Listener interface.
   virtual void SelectFileImpl(
       Type type,
-      const string16& title,
+      const base::string16& title,
       const base::FilePath& default_path,
       const FileTypeInfo* file_types,
       int file_type_index,
       const base::FilePath::StringType& default_extension,
       gfx::NativeWindow owning_window,
       void* params) OVERRIDE;
 
  private:
   virtual bool HasMultipleFileTypeChoicesImpl() OVERRIDE;
 
@@ skipping 96 matching lines @@
   }
 }
 
 bool SelectFileDialogImplGTK::HasMultipleFileTypeChoicesImpl() {
   return file_types_.extensions.size() > 1;
 }
 
 // We ignore |default_extension|.
 void SelectFileDialogImplGTK::SelectFileImpl(
     Type type,
-    const string16& title,
+    const base::string16& title,
     const base::FilePath& default_path,
     const FileTypeInfo* file_types,
     int file_type_index,
     const base::FilePath::StringType& default_extension,
     gfx::NativeWindow owning_window,
     void* params) {
   type_ = type;
   // |owning_window| can be null when user right-clicks on a downloadable item
   // and chooses 'Open Link in New Tab' when 'Ask where to save each file
   // before downloading.' preference is turned on. (http://crbug.com/29213)
@@ skipping 392 matching lines @@
 }  // namespace
 
 namespace ui {
 
 SelectFileDialogImpl* SelectFileDialogImpl::NewSelectFileDialogImplGTK(
     Listener* listener, ui::SelectFilePolicy* policy) {
   return new SelectFileDialogImplGTK(listener, policy);
 }
 
 }  // namespace ui