views: Fix a couple of trivial TODOS.

views/controls/combobox/native_combobox_gtk.cc

Index: views/controls/combobox/native_combobox_gtk.cc
diff --git a/views/controls/combobox/native_combobox_gtk.cc b/views/controls/combobox/native_combobox_gtk.cc
index baf03c4e447d1801ca96829f1e8c7242b8347095..76e550d637d6ca4a05ab7f63f9f96920fc5103b0 100644
--- a/views/controls/combobox/native_combobox_gtk.cc
+++ b/views/controls/combobox/native_combobox_gtk.cc
@@ -16,8 +16,6 @@
 #include "views/views_delegate.h"
 #include "views/widget/widget.h"
 
-using ui::ComboboxModel;  // TODO(beng): remove
-
 namespace views {
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -43,7 +41,7 @@ void NativeComboboxGtk::UpdateFromModel() {
 
   GtkListStore* store =
       GTK_LIST_STORE(gtk_combo_box_get_model(GTK_COMBO_BOX(native_view())));
-  ComboboxModel* model = combobox_->model();
+  ui::ComboboxModel* model = combobox_->model();
   int count = model->GetItemCount();
   gtk_list_store_clear(store);
   GtkTreeIter iter;