Change Painter factory functions to unique_ptr

ui/views/controls/textfield/textfield.cc

Index: ui/views/controls/textfield/textfield.cc
diff --git a/ui/views/controls/textfield/textfield.cc b/ui/views/controls/textfield/textfield.cc
index 217bb57a1247b35ab9fe89594162a04427f8c6ba..d15a3e3d915441064cae5a4ae29dadb8afbbdca2 100644
--- a/ui/views/controls/textfield/textfield.cc
+++ b/ui/views/controls/textfield/textfield.cc
@@ -1847,8 +1847,8 @@ void Textfield::UpdateBackgroundColor() {
   const SkColor color = GetBackgroundColor();
   if (ui::MaterialDesignController::IsSecondaryUiMaterial()) {
     set_background(Background::CreateBackgroundPainter(
-        true, Painter::CreateSolidRoundRectPainter(
-                  color, FocusableBorder::kCornerRadiusDp)));
+        Painter::CreateSolidRoundRectPainter(
+            color, FocusableBorder::kCornerRadiusDp)));
   } else {
     set_background(Background::CreateSolidBackground(color));
   }