Rename xfa_doclayout and xfa_document_layout_imp files.

xfa/fxfa/parser/xfa_layout_pagemgr_new.h

 // 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
 
 #ifndef XFA_FXFA_PARSER_XFA_LAYOUT_PAGEMGR_NEW_H_
 #define XFA_FXFA_PARSER_XFA_LAYOUT_PAGEMGR_NEW_H_
 
-#include "xfa/fxfa/parser/xfa_doclayout.h"
 #include "xfa/fxfa/parser/xfa_layout_itemlayout.h"
 
+class CXFA_LayoutItem;
+
 class CXFA_ContainerRecord {
  public:
   CXFA_ContainerRecord(CXFA_ContainerLayoutItem* pPageSet = nullptr,
                        CXFA_ContainerLayoutItem* pPageArea = nullptr,
                        CXFA_ContainerLayoutItem* pContentArea = nullptr)
       : pCurPageSet(pPageSet),
         pCurPageArea(pPageArea),
         pCurContentArea(pContentArea) {}
   CXFA_ContainerLayoutItem* pCurPageSet;
   CXFA_ContainerLayoutItem* pCurPageArea;
@@ skipping 123 matching lines @@
   CXFA_Node* m_pCurPageArea;
   int32_t m_nAvailPages;
   int32_t m_nCurPageCount;
   XFA_ATTRIBUTEENUM m_ePageSetMode;
   FX_BOOL m_bCreateOverFlowPage;
   CFX_MapPtrTemplate<CXFA_Node*, int32_t> m_pPageSetMap;
   CFX_ArrayTemplate<CXFA_ContainerLayoutItem*> m_PageArray;
 };
 
 #endif  // XFA_FXFA_PARSER_XFA_LAYOUT_PAGEMGR_NEW_H_