Cleanup CPDFXFA_Page.

xfa/fxfa/parser/xfa_document_layout_imp.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/fxfa/parser/xfa_document_layout_imp.h"
 
 #include "xfa/fxfa/fm2js/xfa_fm2jsapi.h"
 #include "xfa/fxfa/parser/xfa_basic_imp.h"
@@ skipping 162 matching lines @@
     : CXFA_LayoutItem(pNode, FALSE), m_pOldSubform(NULL) {}
 CXFA_LayoutProcessor* CXFA_ContainerLayoutItem::GetLayout() const {
   return m_pFormNode->GetDocument()->GetLayoutProcessor();
 }
 int32_t CXFA_ContainerLayoutItem::GetPageIndex() const {
   return m_pFormNode->GetDocument()
       ->GetLayoutProcessor()
       ->GetLayoutPageMgr()
       ->GetPageIndex(this);
 }
-void CXFA_ContainerLayoutItem::GetPageSize(CFX_SizeF& size) {
+
+void CXFA_ContainerLayoutItem::GetPageSize(CFX_SizeF& size) const {
   size.clear();
   CXFA_Node* pMedium = m_pFormNode->GetFirstChildByClass(XFA_ELEMENT_Medium);
   if (!pMedium)
     return;
 
   size = CFX_SizeF(pMedium->GetMeasure(XFA_ATTRIBUTE_Short).ToUnit(XFA_UNIT_Pt),
                    pMedium->GetMeasure(XFA_ATTRIBUTE_Long).ToUnit(XFA_UNIT_Pt));
   if (pMedium->GetEnum(XFA_ATTRIBUTE_Orientation) ==
       XFA_ATTRIBUTEENUM_Landscape) {
     size = CFX_SizeF(size.y, size.x);
   }
 }
+
 CXFA_Node* CXFA_ContainerLayoutItem::GetMasterPage() const {
   return m_pFormNode;
 }
 CXFA_ContentLayoutItem::CXFA_ContentLayoutItem(CXFA_Node* pNode)
     : CXFA_LayoutItem(pNode, TRUE),
       m_pPrev(NULL),
       m_pNext(NULL),
       m_dwStatus(0) {}
 CXFA_ContentLayoutItem::~CXFA_ContentLayoutItem() {
   if (m_pFormNode->GetUserData(XFA_LAYOUTITEMKEY) == this) {
     m_pFormNode->SetUserData(XFA_LAYOUTITEMKEY, NULL);
   }
 }