Split CFWL_Widget::GetWidgetRect into two parts

xfa/fwl/core/cfwl_picturebox.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_picturebox.h"
 
 #include <memory>
 
@@ skipping 12 matching lines @@
   return FWL_Type::PictureBox;
 }
 
 void CFWL_PictureBox::GetWidgetRect(CFX_RectF& rect, bool bAutoSize) {
   if (!bAutoSize) {
     rect = m_pProperties->m_rtWidget;
     return;
   }
 
   rect.Set(0, 0, 0, 0);
-
-  CFWL_Widget::GetWidgetRect(rect, true);
+  InflateWidgetRect(rect);
 }
 
 void CFWL_PictureBox::Update() {
   if (IsLocked())
     return;
   if (!m_pProperties->m_pThemeProvider)
     m_pProperties->m_pThemeProvider = GetAvailableTheme();
 
   GetClientRect(m_rtClient);
 }
 
 void CFWL_PictureBox::DrawWidget(CFX_Graphics* pGraphics,
                                  const CFX_Matrix* pMatrix) {
   if (!pGraphics)
     return;
   if (!m_pProperties->m_pThemeProvider)
     return;
 
   IFWL_ThemeProvider* pTheme = GetAvailableTheme();
   if (HasBorder())
     DrawBorder(pGraphics, CFWL_Part::Border, pTheme, pMatrix);
   if (HasEdge())
     DrawEdge(pGraphics, CFWL_Part::Edge, pTheme, pMatrix);
 }
 
 void CFWL_PictureBox::OnDrawWidget(CFX_Graphics* pGraphics,
                                    const CFX_Matrix* pMatrix) {
   DrawWidget(pGraphics, pMatrix);
 }