Continue IFWL widget cleanup.

xfa/fwl/core/cfwl_datetimepicker.cpp

Index: xfa/fwl/core/cfwl_datetimepicker.cpp
diff --git a/xfa/fwl/core/cfwl_datetimepicker.cpp b/xfa/fwl/core/cfwl_datetimepicker.cpp
index fb4a39fe35c7bfccfc75de0f7b972ea7adad9a5b..efc2b62cf7629d214a2627870704c9f197b2feae 100644
--- a/xfa/fwl/core/cfwl_datetimepicker.cpp
+++ b/xfa/fwl/core/cfwl_datetimepicker.cpp
@@ -35,15 +35,6 @@ void CFWL_DateTimePicker::Initialize() {
   CFWL_Widget::Initialize();
 }
 
-FWL_Error CFWL_DateTimePicker::SetToday(int32_t iYear,
-                                        int32_t iMonth,
-                                        int32_t iDay) {
-  m_iYear = iYear;
-  m_iMonth = iMonth;
-  m_iDay = iDay;
-  return FWL_Error::Succeeded;
-}
-
 int32_t CFWL_DateTimePicker::CountSelRanges() {
   return ToDateTimePicker(GetWidget())->CountSelRanges();
 }
@@ -52,100 +43,40 @@ int32_t CFWL_DateTimePicker::GetSelRange(int32_t nIndex, int32_t& nStart) {
   return ToDateTimePicker(GetWidget())->GetSelRange(nIndex, nStart);
 }
 
-FWL_Error CFWL_DateTimePicker::GetEditText(CFX_WideString& wsText) {
-  return ToDateTimePicker(GetWidget())->GetEditText(wsText);
-}
-
-FWL_Error CFWL_DateTimePicker::SetEditText(const CFX_WideString& wsText) {
-  return ToDateTimePicker(GetWidget())->SetEditText(wsText);
+void CFWL_DateTimePicker::GetEditText(CFX_WideString& wsText) {
+  ToDateTimePicker(GetWidget())->GetEditText(wsText);
 }
 
-FWL_Error CFWL_DateTimePicker::GetCurSel(int32_t& iYear,
-                                         int32_t& iMonth,
-                                         int32_t& iDay) {
-  return ToDateTimePicker(GetWidget())->GetCurSel(iYear, iMonth, iDay);
+void CFWL_DateTimePicker::SetEditText(const CFX_WideString& wsText) {
+  ToDateTimePicker(GetWidget())->SetEditText(wsText);
 }
 
-FWL_Error CFWL_DateTimePicker::SetCurSel(int32_t iYear,
-                                         int32_t iMonth,
-                                         int32_t iDay) {
-  return ToDateTimePicker(GetWidget())->SetCurSel(iYear, iMonth, iDay);
+void CFWL_DateTimePicker::SetCurSel(int32_t iYear,
+                                    int32_t iMonth,
+                                    int32_t iDay) {
+  ToDateTimePicker(GetWidget())->SetCurSel(iYear, iMonth, iDay);
 }
 
-FWL_Error CFWL_DateTimePicker::GetCaption(IFWL_Widget* pWidget,
-                                          CFX_WideString& wsCaption) {
+void CFWL_DateTimePicker::GetCaption(IFWL_Widget* pWidget,
+                                     CFX_WideString& wsCaption) {
   wsCaption = m_wsData;
-  return FWL_Error::Succeeded;
 }
 
-FWL_Error CFWL_DateTimePicker::GetToday(IFWL_Widget* pWidget,
-                                        int32_t& iYear,
-                                        int32_t& iMonth,
-                                        int32_t& iDay) {
+void CFWL_DateTimePicker::GetToday(IFWL_Widget* pWidget,
+                                   int32_t& iYear,
+                                   int32_t& iMonth,
+                                   int32_t& iDay) {
   iYear = m_iYear;
   iMonth = m_iMonth;
   iDay = m_iDay;
-  return FWL_Error::Succeeded;
-}
-
-bool CFWL_DateTimePicker::CanUndo() {
-  return ToDateTimePicker(GetWidget())->CanUndo();
-}
-
-bool CFWL_DateTimePicker::CanRedo() {
-  return ToDateTimePicker(GetWidget())->CanRedo();
-}
-
-bool CFWL_DateTimePicker::Undo() {
-  return ToDateTimePicker(GetWidget())->Undo();
-}
-
-bool CFWL_DateTimePicker::Redo() {
-  return ToDateTimePicker(GetWidget())->Redo();
-}
-
-bool CFWL_DateTimePicker::CanCopy() {
-  return ToDateTimePicker(GetWidget())->CanCopy();
-}
-
-bool CFWL_DateTimePicker::CanCut() {
-  return ToDateTimePicker(GetWidget())->CanCut();
-}
-
-bool CFWL_DateTimePicker::CanSelectAll() {
-  return ToDateTimePicker(GetWidget())->CanSelectAll();
-}
-
-bool CFWL_DateTimePicker::Copy(CFX_WideString& wsCopy) {
-  return ToDateTimePicker(GetWidget())->Copy(wsCopy);
-}
-
-bool CFWL_DateTimePicker::Cut(CFX_WideString& wsCut) {
-  return ToDateTimePicker(GetWidget())->Copy(wsCut);
-}
-
-bool CFWL_DateTimePicker::Paste(const CFX_WideString& wsPaste) {
-  return ToDateTimePicker(GetWidget())->Paste(wsPaste);
-}
-
-bool CFWL_DateTimePicker::SelectAll() {
-  return ToDateTimePicker(GetWidget())->SelectAll();
-}
-
-bool CFWL_DateTimePicker::Delete() {
-  return ToDateTimePicker(GetWidget())->Delete();
-}
-
-bool CFWL_DateTimePicker::DeSelect() {
-  return ToDateTimePicker(GetWidget())->DeSelect();
 }
 
-FWL_Error CFWL_DateTimePicker::GetBBox(CFX_RectF& rect) {
-  return ToDateTimePicker(GetWidget())->GetBBox(rect);
+void CFWL_DateTimePicker::GetBBox(CFX_RectF& rect) {
+  ToDateTimePicker(GetWidget())->GetBBox(rect);
 }
 
-FWL_Error CFWL_DateTimePicker::SetEditLimit(int32_t nLimit) {
-  return ToDateTimePicker(GetWidget())->SetEditLimit(nLimit);
+void CFWL_DateTimePicker::SetEditLimit(int32_t nLimit) {
+  ToDateTimePicker(GetWidget())->SetEditLimit(nLimit);
 }
 
 void CFWL_DateTimePicker::ModifyEditStylesEx(uint32_t dwStylesExAdded,