Cleanup IFWL_Widget visibility and virtual parameters

xfa/fwl/core/cfwl_widget.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "xfa/fwl/core/cfwl_widget.h"
 
 #include "xfa/fde/tto/fde_textout.h"
 #include "xfa/fwl/core/cfwl_themetext.h"
@@ skipping 20 matching lines @@
 }
 
 IFWL_Widget* CFWL_Widget::GetWidget() {
   return m_pIface.get();
 }
 
 const IFWL_Widget* CFWL_Widget::GetWidget() const {
   return m_pIface.get();
 }
 
-FWL_Error CFWL_Widget::GetWidgetRect(CFX_RectF& rect, bool bAutoSize) {
-  if (!m_pIface)
-    return FWL_Error::Indefinite;
-  return m_pIface->GetWidgetRect(rect, bAutoSize);
+void CFWL_Widget::GetWidgetRect(CFX_RectF& rect, bool bAutoSize) {
+  if (m_pIface)
+    m_pIface->GetWidgetRect(rect, bAutoSize);
 }
 
-FWL_Error CFWL_Widget::GetGlobalRect(CFX_RectF& rect) {
-  if (!m_pIface)
-    return FWL_Error::Indefinite;
-  return m_pIface->GetGlobalRect(rect);
+void CFWL_Widget::GetGlobalRect(CFX_RectF& rect) {
+  if (m_pIface)
+    m_pIface->GetGlobalRect(rect);
 }
 
-FWL_Error CFWL_Widget::SetWidgetRect(const CFX_RectF& rect) {
-  if (!m_pIface)
-    return FWL_Error::Indefinite;
-  return m_pIface->SetWidgetRect(rect);
+void CFWL_Widget::SetWidgetRect(const CFX_RectF& rect) {
+  if (m_pIface)
+    m_pIface->SetWidgetRect(rect);
 }
 
-FWL_Error CFWL_Widget::GetClientRect(CFX_RectF& rect) {
-  if (!m_pIface)
-    return FWL_Error::Indefinite;
-  return m_pIface->GetClientRect(rect);
+void CFWL_Widget::GetClientRect(CFX_RectF& rect) {
+  if (m_pIface)
+    m_pIface->GetClientRect(rect);
 }
 
-FWL_Error CFWL_Widget::ModifyStyles(uint32_t dwStylesAdded,
-                                    uint32_t dwStylesRemoved) {
-  if (!m_pIface)
-    return FWL_Error::Indefinite;
-  return m_pIface->ModifyStyles(dwStylesAdded, dwStylesRemoved);
+void CFWL_Widget::ModifyStyles(uint32_t dwStylesAdded,
+                               uint32_t dwStylesRemoved) {
+  if (m_pIface)
+    m_pIface->ModifyStyles(dwStylesAdded, dwStylesRemoved);
 }
 
 uint32_t CFWL_Widget::GetStylesEx() {
   if (!m_pIface)
     return 0;
   return m_pIface->GetStylesEx();
 }
 
-FWL_Error CFWL_Widget::ModifyStylesEx(uint32_t dwStylesExAdded,
-                                      uint32_t dwStylesExRemoved) {
-  return m_pIface->ModifyStylesEx(dwStylesExAdded, dwStylesExRemoved);
+void CFWL_Widget::ModifyStylesEx(uint32_t dwStylesExAdded,
+                                 uint32_t dwStylesExRemoved) {
+  m_pIface->ModifyStylesEx(dwStylesExAdded, dwStylesExRemoved);
 }
 
 uint32_t CFWL_Widget::GetStates() {
   return m_pIface ? m_pIface->GetStates() : 0;
 }
 
 void CFWL_Widget::SetStates(uint32_t dwStates, bool bSet) {
   if (m_pIface)
     m_pIface->SetStates(dwStates, bSet);
 }
@@ skipping 20 matching lines @@
     return;
   m_pIface->UnlockUpdate();
 }
 
 FWL_WidgetHit CFWL_Widget::HitTest(FX_FLOAT fx, FX_FLOAT fy) {
   if (!m_pIface)
     return FWL_WidgetHit::Unknown;
   return m_pIface->HitTest(fx, fy);
 }
 
-FWL_Error CFWL_Widget::DrawWidget(CFX_Graphics* pGraphics,
-                                  const CFX_Matrix* pMatrix) {
-  if (!m_pIface)
-    return FWL_Error::Indefinite;
-  return m_pIface->DrawWidget(pGraphics, pMatrix);
+void CFWL_Widget::DrawWidget(CFX_Graphics* pGraphics,
+                             const CFX_Matrix* pMatrix) {
+  if (m_pIface)
+    m_pIface->DrawWidget(pGraphics, pMatrix);
 }
 
 IFWL_WidgetDelegate* CFWL_Widget::GetDelegate() const {
   return m_pIface ? m_pIface->GetDelegate() : nullptr;
 }
 
 void CFWL_Widget::SetDelegate(IFWL_WidgetDelegate* pDelegate) {
   if (m_pIface)
     m_pIface->SetDelegate(pDelegate);
 }