views::LabelButton should not call virtual methods from its constructor

ui/views/controls/button/checkbox.cc

Index: ui/views/controls/button/checkbox.cc
diff --git a/ui/views/controls/button/checkbox.cc b/ui/views/controls/button/checkbox.cc
index e54616aac0bddc6998a55030ff71caf8a4272d68..495dd0cea929d2a8e2be3c70d2ff1f6a18f28758 100644
--- a/ui/views/controls/button/checkbox.cc
+++ b/ui/views/controls/button/checkbox.cc
@@ -17,15 +17,20 @@ namespace views {
 const char Checkbox::kViewClassName[] = "Checkbox";
 
 Checkbox::Checkbox(const base::string16& label)
-    : LabelButton(NULL, label),
-      checked_(false) {
+    : LabelButton(nullptr), checked_(false) {
   SetHorizontalAlignment(gfx::ALIGN_LEFT);
-  scoped_ptr<LabelButtonBorder> button_border(new LabelButtonBorder(style()));
+  scoped_ptr<LabelButtonBorder> button_border(
+      new LabelButtonBorder(STYLE_TEXTBUTTON));
   button_border->SetPainter(false, STATE_HOVERED, NULL);
   button_border->SetPainter(false, STATE_PRESSED, NULL);
   // Inset the trailing side by a couple pixels for the focus border.
   button_border->set_insets(gfx::Insets(0, 0, 0, 2));
   SetBorder(button_border.Pass());
+
+  // TODO(tapted): Remove this. Checkbox has subclasses and Init() may call
+  // virtual methods.
+  InitAsTextbutton(label);
+
   SetFocusable(true);
 
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();