Attempt to fix some -Woverloaded-virtual warnings.

fpdfsdk/src/pdfwindow/PWL_ComboBox.cpp

Index: fpdfsdk/src/pdfwindow/PWL_ComboBox.cpp
diff --git a/fpdfsdk/src/pdfwindow/PWL_ComboBox.cpp b/fpdfsdk/src/pdfwindow/PWL_ComboBox.cpp
index 020765aba5e4bd97d67eb71212cdd6936684efaf..01810ffd7a2a2e02c6a30f2b391dacd25bac2650 100644
--- a/fpdfsdk/src/pdfwindow/PWL_ComboBox.cpp
+++ b/fpdfsdk/src/pdfwindow/PWL_ComboBox.cpp
@@ -47,7 +47,7 @@ FX_BOOL	CPWL_CBListBox::OnLButtonUp(const CPDF_Point & point, FX_DWORD nFlag)
 	return TRUE;
 }
 
-FX_BOOL CPWL_CBListBox::OnKeyDown(FX_WORD nChar, FX_BOOL & bExit, FX_DWORD nFlag)
+FX_BOOL CPWL_CBListBox::OnKeyDownWithExit(FX_WORD nChar, FX_BOOL & bExit, FX_DWORD nFlag)
 {
 	if (!m_pList) return FALSE;
 
@@ -93,7 +93,7 @@ FX_BOOL CPWL_CBListBox::OnKeyDown(FX_WORD nChar, FX_BOOL & bExit, FX_DWORD nFlag
 	return TRUE;
 }
 
-FX_BOOL	CPWL_CBListBox::OnChar(FX_WORD nChar, FX_BOOL & bExit, FX_DWORD nFlag)
+FX_BOOL	CPWL_CBListBox::OnCharWithExit(FX_WORD nChar, FX_BOOL & bExit, FX_DWORD nFlag)
 {
 	if (!m_pList) return FALSE;
 
@@ -552,7 +552,7 @@ FX_BOOL CPWL_ComboBox::OnKeyDown(FX_WORD nChar, FX_DWORD nFlag)
 		if (m_pList->GetCurSel() > 0)
 		{
 			FX_BOOL bExit = FALSE;
-			if (m_pList->OnKeyDown(nChar,bExit,nFlag))
+			if (m_pList->OnKeyDownWithExit(nChar,bExit,nFlag))
 			{
 				if (bExit) return FALSE;
 				SetSelectText();				
@@ -563,7 +563,7 @@ FX_BOOL CPWL_ComboBox::OnKeyDown(FX_WORD nChar, FX_DWORD nFlag)
 		if (m_pList->GetCurSel() < m_pList->GetCount() - 1)
 		{
 			FX_BOOL bExit = FALSE;
-			if (m_pList->OnKeyDown(nChar,bExit,nFlag))
+			if (m_pList->OnKeyDownWithExit(nChar,bExit,nFlag))
 			{
 				if (bExit) return FALSE;
 				SetSelectText();				
@@ -592,7 +592,7 @@ FX_BOOL CPWL_ComboBox::OnChar(FX_WORD nChar, FX_DWORD nFlag)
 	}
 	else
 	{
-		if (m_pList->OnChar(nChar,bExit,nFlag))
+		if (m_pList->OnCharWithExit(nChar,bExit,nFlag))
 		{
 			return bExit;
 		}