Split CFWL_Widget::GetWidgetRect into two parts

xfa/fwl/core/cfwl_listbox.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_listbox.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 43 matching lines @@
     rect = m_pProperties->m_rtWidget;
     return;
   }
 
   rect.Set(0, 0, 0, 0);
   if (!m_pProperties->m_pThemeProvider)
     m_pProperties->m_pThemeProvider = GetAvailableTheme();
 
   CFX_SizeF fs = CalcSize(true);
   rect.Set(0, 0, fs.x, fs.y);
-  CFWL_Widget::GetWidgetRect(rect, true);
+  InflateWidgetRect(rect);
 }
 
 void CFWL_ListBox::Update() {
   if (IsLocked())
     return;
   if (!m_pProperties->m_pThemeProvider)
     m_pProperties->m_pThemeProvider = GetAvailableTheme();
 
   switch (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_AlignMask) {
     case FWL_STYLEEXT_LTB_LeftAlign: {
@@ skipping 1064 matching lines @@
 void CFWL_ListBox::DeleteAll() {
   m_ItemArray.clear();
 }
 
 uint32_t CFWL_ListBox::GetItemStates(CFWL_ListItem* pItem) {
   if (!pItem)
     return 0;
   return pItem->m_dwStates | pItem->m_dwCheckState;
 }