Inflict PDF_ENABLE_XFA ifdefs on XFA fpdfsdk/

fpdfsdk/src/formfiller/FFL_ComboBox.cpp

Index: fpdfsdk/src/formfiller/FFL_ComboBox.cpp
diff --git a/fpdfsdk/src/formfiller/FFL_ComboBox.cpp b/fpdfsdk/src/formfiller/FFL_ComboBox.cpp
index 348d5d14d2f8d5e879bed68e70da511040866bc4..a348d054a1f83f1e6d74a96f4207c913efaf8457 100644
--- a/fpdfsdk/src/formfiller/FFL_ComboBox.cpp
+++ b/fpdfsdk/src/formfiller/FFL_ComboBox.cpp
@@ -256,6 +256,7 @@ CPWL_Wnd* CFFL_ComboBox::ResetPDFWindow(CPDFSDK_PageView* pPageView,
   return pRet;
 }
 
+#ifdef PDF_ENABLE_XFA
 FX_BOOL CFFL_ComboBox::IsFieldFull(CPDFSDK_PageView* pPageView) {
   if (CPWL_ComboBox* pComboBox =
           static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, FALSE))) {
@@ -265,6 +266,7 @@ FX_BOOL CFFL_ComboBox::IsFieldFull(CPDFSDK_PageView* pPageView) {
   return FALSE;
 }
 
+#endif
 void CFFL_ComboBox::OnSetFocus(CPWL_Wnd* pWnd) {
   ASSERT(m_pApp != NULL);