Remove FWL globals.

xfa/fwl/core/ifwl_combolist.h

Index: xfa/fwl/core/ifwl_combolist.h
diff --git a/xfa/fwl/core/ifwl_combolist.h b/xfa/fwl/core/ifwl_combolist.h
index d88a5956c29ec91141b3ea78289788301e36183b..eaa03e36d4808ed51ab4b80699e7d4c6444380e3 100644
--- a/xfa/fwl/core/ifwl_combolist.h
+++ b/xfa/fwl/core/ifwl_combolist.h
@@ -13,11 +13,12 @@
 
 class IFWL_ComboList : public IFWL_ListBox {
  public:
-  IFWL_ComboList(const CFWL_WidgetImpProperties& properties,
+  IFWL_ComboList(const IFWL_App* app,
+                 const CFWL_WidgetImpProperties& properties,
                  IFWL_Widget* pOuter);
 
   // IFWL_Widget
-  FWL_Error Initialize() override;
+  void Initialize() override;
   void Finalize() override;
 
   int32_t MatchItem(const CFX_WideString& wsMatch);