Replace FilePath with base::FilePath in some more top level directories.

ui/shell_dialogs/gtk/select_file_dialog_impl.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.
 //
 // This file implements common select dialog functionality between GTK and KDE.
 
 #include "ui/shell_dialogs/gtk/select_file_dialog_impl.h"
 
 #include "base/environment.h"
 #include "base/file_util.h"
@@ skipping 50 matching lines @@
   return SelectFileDialogImpl::NewSelectFileDialogImplKDE(
       listener, policy, desktop);
 }
 
 SelectFileDialogImpl::SelectFileDialogImpl(Listener* listener,
                                            ui::SelectFilePolicy* policy)
     : SelectFileDialog(listener, policy),
       file_type_index_(0),
       type_(SELECT_NONE) {
   if (!last_saved_path_) {
-    last_saved_path_ = new FilePath();
-    last_opened_path_ = new FilePath();
+    last_saved_path_ = new base::FilePath();
+    last_opened_path_ = new base::FilePath();
   }
 }
 
 SelectFileDialogImpl::~SelectFileDialogImpl() { }
 
 void SelectFileDialogImpl::ListenerDestroyed() {
   listener_ = NULL;
 }
 
 bool SelectFileDialogImpl::IsRunning(gfx::NativeWindow parent_window) const {
   return parents_.find(parent_window) != parents_.end();
 }
 
-bool SelectFileDialogImpl::CallDirectoryExistsOnUIThread(const FilePath& path) {
+bool SelectFileDialogImpl::CallDirectoryExistsOnUIThread(
+    const base::FilePath& path) {
   base::ThreadRestrictions::ScopedAllowIO allow_io;
   return file_util::DirectoryExists(path);
 }
 
 }  // namespace ui