Move CPDF_NumberTree to fpdfdoc.

core/src/fpdfdoc/doc_utils.h

 // Copyright 2015 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 CORE_SRC_FPDFDOC_DOC_UTILS_H_
 #define CORE_SRC_FPDFDOC_DOC_UTILS_H_
 
 #include <vector>
 
+class CPDF_Dictionary;
+class CPDF_FormField;
+
+class CPDF_NumberTree {
+ public:
+  CPDF_NumberTree(CPDF_Dictionary* pRoot) : m_pRoot(pRoot) {}
+  CPDF_Object* LookupValue(int num) const;
+
+ protected:
+  CPDF_Dictionary* const m_pRoot;
+};
+
 CFX_WideString GetFullName(CPDF_Dictionary* pFieldDict);
 void InitInterFormDict(CPDF_Dictionary*& pFormDict, CPDF_Document* pDocument);
 FX_DWORD CountInterFormFonts(CPDF_Dictionary* pFormDict);
 CPDF_Font* GetInterFormFont(CPDF_Dictionary* pFormDict,
                             CPDF_Document* pDocument,
                             FX_DWORD index,
                             CFX_ByteString& csNameTag);
 CPDF_Font* GetInterFormFont(CPDF_Dictionary* pFormDict,
                             CPDF_Document* pDocument,
                             CFX_ByteString csNameTag);
@@ skipping 34 matching lines @@
 void SetDefaultInterFormFont(CPDF_Dictionary*& pFormDict,
                              CPDF_Document* pDocument,
                              const CPDF_Font* pFont);
 std::vector<bool> SaveCheckedFieldStatus(CPDF_FormField* pField);
 FX_BOOL NeedPDFEncodeForFieldFullName(const CFX_WideString& csFieldName);
 FX_BOOL NeedPDFEncodeForFieldTree(CPDF_Dictionary* pFieldDict, int nLevel = 0);
 void EncodeFieldName(const CFX_WideString& csName, CFX_ByteString& csT);
 void UpdateEncodeFieldName(CPDF_Dictionary* pFieldDict, int nLevel = 0);
 
 #endif  // CORE_SRC_FPDFDOC_DOC_UTILS_H_