Standardize usage of virtual/override/final specifiers.

chrome/browser/ui/libgtk2ui/select_file_dialog_impl_gtk2.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 <gtk/gtk.h>
 #include <map>
 #include <set>
 #include <vector>
 
 // Xlib defines RootWindow
@@ skipping 35 matching lines @@
 
 // Implementation of SelectFileDialog that shows a Gtk common dialog for
 // choosing a file or folder. This acts as a modal dialog.
 class SelectFileDialogImplGTK : public SelectFileDialogImpl,
                                 public aura::WindowObserver {
  public:
   explicit SelectFileDialogImplGTK(Listener* listener,
                                    ui::SelectFilePolicy* policy);
 
  protected:
-  virtual ~SelectFileDialogImplGTK();
+  ~SelectFileDialogImplGTK() override;
 
   // BaseShellDialog implementation:
-  virtual bool IsRunning(gfx::NativeWindow parent_window) const override;
+  bool IsRunning(gfx::NativeWindow parent_window) const override;
 
   // SelectFileDialog implementation.
   // |params| is user data we pass back via the Listener interface.
-  virtual void SelectFileImpl(
-      Type type,
-      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;
+  void SelectFileImpl(Type type,
+                      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;
+  bool HasMultipleFileTypeChoicesImpl() override;
 
   // Overridden from aura::WindowObserver:
-  virtual void OnWindowDestroying(aura::Window* window) override;
+  void OnWindowDestroying(aura::Window* window) override;
 
   // Add the filters from |file_types_| to |chooser|.
   void AddFilters(GtkFileChooser* chooser);
 
   // Notifies the listener that a single file was chosen.
   void FileSelected(GtkWidget* dialog, const base::FilePath& path);
 
   // Notifies the listener that multiple files were chosen.
   void MultiFilesSelected(GtkWidget* dialog,
                           const std::vector<base::FilePath>& files);
@@ skipping 540 matching lines @@
   g_free(filename);
   if (pixbuf) {
     gtk_image_set_from_pixbuf(GTK_IMAGE(preview_), pixbuf);
     g_object_unref(pixbuf);
   }
   gtk_file_chooser_set_preview_widget_active(GTK_FILE_CHOOSER(chooser),
                                              pixbuf ? TRUE : FALSE);
 }
 
 }  // namespace libgtk2ui