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

ui/views/button_drag_utils.cc

Index: ui/views/button_drag_utils.cc
diff --git a/ui/views/button_drag_utils.cc b/ui/views/button_drag_utils.cc
index cca89ea1eb217f05be760057d0ee7f418cd1f55b..4460404920abc9f3ea680bc59f1cb30d50ab29f3 100644
--- a/ui/views/button_drag_utils.cc
+++ b/ui/views/button_drag_utils.cc
@@ -43,9 +43,8 @@ void SetDragImage(const GURL& url,
                   ui::OSExchangeData* data,
                   views::Widget* widget) {
   // Create a button to render the drag image for us.
-  views::LabelButton button(NULL,
-                            title.empty() ? base::UTF8ToUTF16(url.spec())
-                                          : title);
+  views::LabelButton button(nullptr);
+  button.Init(title.empty() ? base::UTF8ToUTF16(url.spec()) : title);
   button.SetTextSubpixelRenderingEnabled(false);
   const ui::NativeTheme* theme =
       widget ? widget->GetNativeTheme() : ui::NativeTheme::instance();