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

ui/views/controls/combobox/combobox.cc

Index: ui/views/controls/combobox/combobox.cc
diff --git a/ui/views/controls/combobox/combobox.cc b/ui/views/controls/combobox/combobox.cc
index 9c0eaea62ff6657cc02f14f9a0c1d135859827c3..2b906c9e6b50abd3e37cbb3b1e2301b38df740e2 100644
--- a/ui/views/controls/combobox/combobox.cc
+++ b/ui/views/controls/combobox/combobox.cc
@@ -9,6 +9,7 @@
 #include "ui/base/accessibility/accessible_view_state.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/base/models/combobox_model.h"
+#include "ui/base/resource/resource_bundle.h"
 #include "ui/views/controls/combobox/combobox_listener.h"
 #include "ui/views/controls/native/native_view_host.h"
 #include "ui/views/widget/widget.h"
@@ -32,6 +33,12 @@ Combobox::Combobox(ui::ComboboxModel* model)
 Combobox::~Combobox() {
 }
 
+// static
+const gfx::Font& Combobox::GetFont() {
+  ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
+  return rb.GetFont(ui::ResourceBundle::BaseFont);
+}
+
 void Combobox::ModelChanged() {
   selected_item_ = std::min(0, model_->GetItemCount());
   if (native_wrapper_)