Views - dialog button defaultness shouldn't follow focus.

ui/views/controls/button/label_button.cc

Index: ui/views/controls/button/label_button.cc
diff --git a/ui/views/controls/button/label_button.cc b/ui/views/controls/button/label_button.cc
index 978a5afb6e4c539ab5f941ba0771d691a76fefe7..bc8bf5d5b3c0e55e3768d144ca060bdf2e3da682 100644
--- a/ui/views/controls/button/label_button.cc
+++ b/ui/views/controls/button/label_button.cc
@@ -181,11 +181,7 @@ void LabelButton::SetIsDefault(bool is_default) {
   if (style_ == STYLE_BUTTON) {
     label_->SetFontList(
         is_default ? cached_bold_font_list_ : cached_normal_font_list_);
-    // Usually this function is called before |this| is attached to a widget,
-    // but in the cases where |this| is already shown, we need to re-layout
-    // because font boldness affects the label's size.
-    if (GetWidget())
-      Layout();
+    InvalidateLayout();
   }
 }