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diff --git a/xfa/fxfa/parser/cxfa_layoutprocessor.h b/xfa/fxfa/parser/cxfa_layoutprocessor.h
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+++ b/xfa/fxfa/parser/cxfa_layoutprocessor.h
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+// Copyright 2016 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_CXFA_LAYOUTPROCESSOR_H_
+#define XFA_FXFA_PARSER_CXFA_LAYOUTPROCESSOR_H_
+
+#include "core/fxcrt/include/fx_system.h"
+#include "xfa/fxfa/parser/xfa_object.h"
+
+class CXFA_ContainerLayoutItem;
+class CXFA_Document;
+class CXFA_ItemLayoutProcessor;
+class CXFA_LayoutItem;
+class CXFA_LayoutPageMgr;
+class CXFA_Node;
+class IFX_Pause;
+
+class CXFA_LayoutProcessor {
+ public:
+  CXFA_LayoutProcessor(CXFA_Document* pDocument);
+  ~CXFA_LayoutProcessor();
+
+  CXFA_Document* GetDocument() const;
+  int32_t StartLayout(FX_BOOL bForceRestart = FALSE);
+  int32_t DoLayout(IFX_Pause* pPause = nullptr);
+  FX_BOOL IncrementLayout();
+  int32_t CountPages() const;
+  CXFA_ContainerLayoutItem* GetPage(int32_t index) const;
+  CXFA_LayoutItem* GetLayoutItem(CXFA_Node* pFormItem);
+
+  void AddChangedContainer(CXFA_Node* pContainer);
+  void SetForceReLayout(FX_BOOL bForceRestart) { m_bNeeLayout = bForceRestart; }
+  CXFA_ContainerLayoutItem* GetRootLayoutItem() const;
+  CXFA_ItemLayoutProcessor* GetRootRootItemLayoutProcessor() {
+    return m_pRootItemLayoutProcessor;
+  }
+  CXFA_LayoutPageMgr* GetLayoutPageMgr() { return m_pLayoutPageMgr; }
+
+ private:
+  void ClearLayoutData();
+
+  FX_BOOL IsNeedLayout();
+
+  CXFA_Document* m_pDocument;
+  CXFA_ItemLayoutProcessor* m_pRootItemLayoutProcessor;
+  CXFA_LayoutPageMgr* m_pLayoutPageMgr;
+  CXFA_NodeArray m_rgChangedContainers;
+  uint32_t m_nProgressCounter;
+  FX_BOOL m_bNeeLayout;
+};
+
+#endif  // XFA_FXFA_PARSER_CXFA_LAYOUTPROCESSOR_H_