Name the states for fpdf_parser_parser.

core/include/fpdfapi/fpdf_parser.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 CORE_INCLUDE_FPDFAPI_FPDF_PARSER_H_
 #define CORE_INCLUDE_FPDFAPI_FPDF_PARSER_H_
 
 #include <map>
@@ skipping 432 matching lines @@
   using StreamObjectCache = std::map<FX_DWORD, FX_DWORD>;
 
   // Mapping of streams to their object caches. This is valid as long as the
   // streams in |m_ObjectStreamMap| are valid.
   std::map<CPDF_StreamAcc*, StreamObjectCache> m_ObjCache;
 
   // All indirect object numbers that are being parsed.
   std::set<FX_DWORD> m_ParsingObjNums;
 
   friend class CPDF_DataAvail;
+
+ private:
+  enum class ParserState {
+    kDefault,
+    kComment,
+    kWhitespace,
+    kString,
+    kHexString,
+    kEscapedString,
+    kXref,
+    kObjNum,
+    kPostObjNum,
+    kGenNum,
+    kPostGenNum,
+    kTrailer,
+    kBeginObj,
+    kEndObj
+  };
 };
 
 #define FXCIPHER_NONE 0
 #define FXCIPHER_RC4 1
 #define FXCIPHER_AES 2
 #define FXCIPHER_AES2 3
 
 class IPDF_SecurityHandler {
  public:
   virtual ~IPDF_SecurityHandler() {}
@@ skipping 410 matching lines @@
                        FX_DWORD src_size,
                        const CPDF_Dictionary* pDict,
                        uint8_t*& dest_buf,
                        FX_DWORD& dest_size,
                        CFX_ByteString& ImageEncoding,
                        CPDF_Dictionary*& pImageParms,
                        FX_DWORD estimated_size,
                        FX_BOOL bImageAcc);
 
 #endif  // CORE_INCLUDE_FPDFAPI_FPDF_PARSER_H_