FWL refcounts never incremented (part 2).

xfa/include/fwl/basewidget/fwl_picturebox.h

Index: xfa/include/fwl/basewidget/fwl_picturebox.h
diff --git a/xfa/include/fwl/basewidget/fwl_picturebox.h b/xfa/include/fwl/basewidget/fwl_picturebox.h
index b55d4c30d9e0ce96b2a8bb0e13388e19a52cdb97..d0eefdea1d1a502b0e424c0864ce260f221e0722 100644
--- a/xfa/include/fwl/basewidget/fwl_picturebox.h
+++ b/xfa/include/fwl/basewidget/fwl_picturebox.h
@@ -40,10 +40,13 @@ class IFWL_PictureBoxDP : public IFWL_DataProvider {
   virtual int32_t GetFlipMode(IFWL_Widget* pWidget) = 0;
   virtual FWL_ERR GetMatrix(IFWL_Widget* pWidget, CFX_Matrix& matrix) = 0;
 };
+
 class IFWL_PictureBox : public IFWL_Widget {
  public:
+  static IFWL_PictureBox* Create(const CFWL_WidgetImpProperties& properties,
+                                 IFWL_Widget* pOuter);
+
+ protected:
   IFWL_PictureBox();
-  FWL_ERR Initialize(const CFWL_WidgetImpProperties& properties,
-                     IFWL_Widget* pOuter);
 };
 #endif