Split CFWL_Widget::GetWidgetRect into two parts

xfa/fwl/core/cfwl_datetimepicker.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_datetimepicker.h"
 
 #include <memory>
 #include <utility>
@@ skipping 61 matching lines @@
   if (m_pWidgetMgr->IsFormDisabled()) {
     DisForm_GetWidgetRect(rect, bAutoSize);
     return;
   }
   if (!bAutoSize) {
     rect = m_pProperties->m_rtWidget;
     return;
   }
 
   rect.Set(0, 0, kDateTimePickerWidth, kDateTimePickerHeight);
-  CFWL_Widget::GetWidgetRect(rect, true);
+  InflateWidgetRect(rect);
 }
 
 void CFWL_DateTimePicker::Update() {
   if (m_pWidgetMgr->IsFormDisabled()) {
     DisForm_Update();
     return;
   }
   if (m_iLock)
     return;
   if (!m_pProperties->m_pThemeProvider)
@@ skipping 556 matching lines @@
     if (DisForm_IsMonthCalendarVisible())
       ShowMonthCalendar(false);
     if (m_pEdit->GetStates() & FWL_WGTSTATE_Focused) {
       pMsg->m_pSrcTarget = m_pEdit.get();
       m_pEdit->GetDelegate()->OnProcessMessage(pMsg);
     }
   }
   rtInvalidate.Inflate(2, 2);
   Repaint(&rtInvalidate);
 }