Cleanup IFWL_Widget visibility and virtual parameters

xfa/fwl/core/ifwl_tooltip.h

Index: xfa/fwl/core/ifwl_tooltip.h
diff --git a/xfa/fwl/core/ifwl_tooltip.h b/xfa/fwl/core/ifwl_tooltip.h
index 78b7535ebf7f5e0df20483239278156f534e8450..14430f420ebf73fe7e66bd435a17648a41db5f7a 100644
--- a/xfa/fwl/core/ifwl_tooltip.h
+++ b/xfa/fwl/core/ifwl_tooltip.h
@@ -41,12 +41,12 @@ class IFWL_ToolTip : public IFWL_Form {
 
   // IFWL_Widget
   FWL_Type GetClassID() const override;
-  FWL_Error GetWidgetRect(CFX_RectF& rect, bool bAutoSize = false) override;
-  FWL_Error Update() override;
-  FWL_Error DrawWidget(CFX_Graphics* pGraphics,
-                       const CFX_Matrix* pMatrix = nullptr) override;
+  void GetWidgetRect(CFX_RectF& rect, bool bAutoSize = false) override;
+  void Update() override;
+  void DrawWidget(CFX_Graphics* pGraphics,
+                  const CFX_Matrix* pMatrix = nullptr) override;
   void SetStates(uint32_t dwStates, bool bSet) override;
-  FWL_Error GetClientRect(CFX_RectF& rect) override;
+  void GetClientRect(CFX_RectF& rect) override;
   void OnDrawWidget(CFX_Graphics* pGraphics,
                     const CFX_Matrix* pMatrix) override;