views: Refactor the way we get the combo box font.

ui/views/controls/combobox/combobox.h

 // Copyright (c) 2011 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.
 
 #ifndef UI_VIEWS_CONTROLS_COMBOBOX_COMBOBOX_H_
 #define UI_VIEWS_CONTROLS_COMBOBOX_COMBOBOX_H_
 #pragma once
 
 #include <string>
 
 #include "ui/gfx/native_widget_types.h"
 #include "ui/views/controls/combobox/native_combobox_wrapper.h"
 #include "ui/views/view.h"
 
+namespace gfx {
+class Font;
+}
+
 namespace ui {
 class ComboboxModel;
 }
 
 namespace views {
 
 class ComboboxListener;
 
 // A non-editable combo-box (aka a drop-down list)
 class VIEWS_EXPORT Combobox : public View {
  public:
   // The combobox's class name.
   static const char kViewClassName[];
 
   // |model| is not owned by the combo box.
   explicit Combobox(ui::ComboboxModel* model);
   virtual ~Combobox();
 
+  static const gfx::Font& GetFont();
+
   // Register |listener| for item change events.
   void set_listener(ComboboxListener* listener) {
     listener_ = listener;
   }
 
   // Inform the combo box that its model changed.
   void ModelChanged();
 
   // Gets/Sets the selected item.
   int selected_item() const { return selected_item_; }
@@ skipping 50 matching lines @@
 
   // The accessible name of the text field.
   string16 accessible_name_;
 
   DISALLOW_COPY_AND_ASSIGN(Combobox);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_COMBOBOX_COMBOBOX_H_