Convert GetWidgetRect to return rect.

xfa/fwl/core/cfwl_spinbutton.cpp

Index: xfa/fwl/core/cfwl_spinbutton.cpp
diff --git a/xfa/fwl/core/cfwl_spinbutton.cpp b/xfa/fwl/core/cfwl_spinbutton.cpp
index 03ec5afdf8a5e8727f76d79ac9044a815ff3801d..43229d9c9e4e3cdcdf67ee893b5a5f8e8c940c98 100644
--- a/xfa/fwl/core/cfwl_spinbutton.cpp
+++ b/xfa/fwl/core/cfwl_spinbutton.cpp
@@ -49,14 +49,14 @@ FWL_Type CFWL_SpinButton::GetClassID() const {
   return FWL_Type::SpinButton;
 }
 
-void CFWL_SpinButton::GetWidgetRect(CFX_RectF& rect, bool bAutoSize) {
-  if (!bAutoSize) {
-    rect = m_pProperties->m_rtWidget;
-    return;
-  }
+CFX_RectF CFWL_SpinButton::GetWidgetRect(bool bAutoSize) {
+  if (!bAutoSize)
+    return m_pProperties->m_rtWidget;
 
+  CFX_RectF rect;
   rect.Set(0, 0, kMinWidth, kMinHeight);
   InflateWidgetRect(rect);
+  return rect;
 }
 
 void CFWL_SpinButton::Update() {