Break xfa_parser_imp apart

xfa/fxfa/parser/xfa_layout_pagemgr_new.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_layout_pagemgr_new.h"
 
 #include "xfa/fxfa/app/xfa_ffnotify.h"
 #include "xfa/fxfa/parser/xfa_doclayout.h"
 #include "xfa/fxfa/parser/xfa_document.h"
 #include "xfa/fxfa/parser/xfa_document_datamerger_imp.h"
 #include "xfa/fxfa/parser/xfa_document_layout_imp.h"
 #include "xfa/fxfa/parser/xfa_layout_appadapter.h"
 #include "xfa/fxfa/parser/xfa_layout_itemlayout.h"
 #include "xfa/fxfa/parser/xfa_localemgr.h"
 #include "xfa/fxfa/parser/xfa_object.h"
-#include "xfa/fxfa/parser/xfa_parser_imp.h"
 #include "xfa/fxfa/parser/xfa_script.h"
 #include "xfa/fxfa/parser/xfa_script_imp.h"
 #include "xfa/fxfa/parser/xfa_utils.h"
 
 namespace {
 
 class PageSetContainerLayoutItem {
  public:
   static inline CXFA_ContainerLayoutItem* GetFirstChild(
       CXFA_ContainerLayoutItem* pLayoutItem) {
@@ skipping 1913 matching lines @@
   }
   pRootLayoutItem = m_pPageSetLayoutItemRoot;
   CXFA_ContainerLayoutItem* pNextLayout = nullptr;
   for (; pRootLayoutItem; pRootLayoutItem = pNextLayout) {
     pNextLayout = (CXFA_ContainerLayoutItem*)pRootLayoutItem->m_pNextSibling;
     SaveLayoutItem(pRootLayoutItem);
     delete pRootLayoutItem;
   }
   m_pPageSetLayoutItemRoot = nullptr;
 }