Remove DataProvider from CFWL_WidgetProperties

xfa/fwl/core/ifwl_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/ifwl_widget.h"
 
 #include <algorithm>
 #include <utility>
@@ skipping 267 matching lines @@
   CFX_Matrix m;
   m.SetIdentity();
   matrix.Concat(m, true);
   parents.RemoveAll();
 }
 
 IFWL_ThemeProvider* IFWL_Widget::GetThemeProvider() const {
   return m_pProperties->m_pThemeProvider;
 }
 
-IFWL_Widget::DataProvider* IFWL_Widget::GetDataProvider() const {
-  return m_pProperties->m_pDataProvider;
-}
-
 void IFWL_Widget::SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) {
   m_pProperties->m_pThemeProvider = pThemeProvider;
 }
 
 bool IFWL_Widget::IsEnabled() const {
   return (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) == 0;
 }
 
 bool IFWL_Widget::IsActive() const {
   return (m_pProperties->m_dwStates & FWL_WGTSTATE_Deactivated) == 0;
@@ skipping 496 matching lines @@
     }
     default:
       break;
   }
 }
 
 void IFWL_Widget::OnProcessEvent(CFWL_Event* pEvent) {}
 
 void IFWL_Widget::OnDrawWidget(CFX_Graphics* pGraphics,
                                const CFX_Matrix* pMatrix) {}