Fix all the code which has duplicate variable declarations

fpdfsdk/formfiller/cffl_iformfiller.cpp

Index: fpdfsdk/formfiller/cffl_iformfiller.cpp
diff --git a/fpdfsdk/formfiller/cffl_iformfiller.cpp b/fpdfsdk/formfiller/cffl_iformfiller.cpp
index 06f24182ceb8cdc2779967934825e8cc3fcfa7e9..9dcc734a249ae255bc46b0919628f3d5f92b4e1d 100644
--- a/fpdfsdk/formfiller/cffl_iformfiller.cpp
+++ b/fpdfsdk/formfiller/cffl_iformfiller.cpp
@@ -440,9 +440,9 @@ FX_BOOL CFFL_IFormFiller::OnSetFocus(CPDFSDK_Annot* pAnnot, FX_UINT nFlag) {
       m_bNotifying = FALSE;
 
       if (pWidget->IsAppModified()) {
-        if (CFFL_FormFiller* pFormFiller = GetFormFiller(pWidget, FALSE)) {
-          pFormFiller->ResetPDFWindow(pPageView,
-                                      nValueAge == pWidget->GetValueAge());
+        if (CFFL_FormFiller* pFiller = GetFormFiller(pWidget, FALSE)) {
+          pFiller->ResetPDFWindow(pPageView,
+                                  nValueAge == pWidget->GetValueAge());
         }
       }
     }