Fix all the code which has duplicate variable declarations

xfa/fwl/basewidget/fwl_listboximp.cpp

Index: xfa/fwl/basewidget/fwl_listboximp.cpp
diff --git a/xfa/fwl/basewidget/fwl_listboximp.cpp b/xfa/fwl/basewidget/fwl_listboximp.cpp
index 639a46c87b51775c884978bf44aa7665a1ae52b8..34628aa82c3f322ffa90f20be522c8dddefb5e0d 100644
--- a/xfa/fwl/basewidget/fwl_listboximp.cpp
+++ b/xfa/fwl/basewidget/fwl_listboximp.cpp
@@ -743,9 +743,9 @@ CFX_SizeF CFWL_ListBoxImp::CalcSize(FX_BOOL bAutoSize) {
       if (!bAutoSize) {
         CFX_RectF rtItem;
         rtItem.Set(m_rtClient.left, m_rtClient.top + fs.y, r.width, r.height);
-        IFWL_ListBoxDP* pData =
+        IFWL_ListBoxDP* pBox =
             static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
-        pData->SetItemRect(m_pInterface, pItem, rtItem);
+        pBox->SetItemRect(m_pInterface, pItem, rtItem);
       }
       fs.y += r.height;
       if (fs.x < r.width) {