+ // Indicates if we are showing the selection widget.
+ bool showing_selection_widget_;
+
+ // Window text filter widget. As the user writes on it, we filter the items
+ // in the overview. It is also responsible for handling overview key events,
+ // such as enter key to select.
+ scoped_ptr<views::Widget> text_filter_widget_;
+
+ // The current length of the string entered into the text filtering textfield.
+ size_t text_filter_string_length_;
+
+ // The number of times the text filtering textfield has been cleared of text
+ // during this overview mode session.
+ size_t num_times_textfield_cleared_;
+