Remove CPDF_Object::GetConstString and overrides

core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h

 // 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 CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_DICTIONARY_H_
 #define CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_DICTIONARY_H_
 
 #include <map>
@@ skipping 16 matching lines @@
   CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override;
   CPDF_Dictionary* GetDict() const override;
   bool IsDictionary() const override;
   CPDF_Dictionary* AsDictionary() override;
   const CPDF_Dictionary* AsDictionary() const override;
 
   size_t GetCount() const { return m_Map.size(); }
   CPDF_Object* GetObjectBy(const CFX_ByteStringC& key) const;
   CPDF_Object* GetDirectObjectBy(const CFX_ByteStringC& key) const;
   CFX_ByteString GetStringBy(const CFX_ByteStringC& key) const;
-  CFX_ByteStringC GetConstStringBy(const CFX_ByteStringC& key) const;
   CFX_ByteString GetStringBy(const CFX_ByteStringC& key,
                              const CFX_ByteStringC& default_str) const;
-  CFX_ByteStringC GetConstStringBy(const CFX_ByteStringC& key,
-                                   const CFX_ByteStringC& default_str) const;
   CFX_WideString GetUnicodeTextBy(const CFX_ByteStringC& key) const;
   int GetIntegerBy(const CFX_ByteStringC& key) const;
   int GetIntegerBy(const CFX_ByteStringC& key, int default_int) const;
   FX_BOOL GetBooleanBy(const CFX_ByteStringC& key,
                        FX_BOOL bDefault = FALSE) const;
   FX_FLOAT GetNumberBy(const CFX_ByteStringC& key) const;
   CPDF_Dictionary* GetDictBy(const CFX_ByteStringC& key) const;
   CPDF_Stream* GetStreamBy(const CFX_ByteStringC& key) const;
   CPDF_Array* GetArrayBy(const CFX_ByteStringC& key) const;
   CFX_FloatRect GetRectBy(const CFX_ByteStringC& key) const;
@@ skipping 38 matching lines @@
   const_iterator begin() const { return m_Map.begin(); }
   const_iterator end() const { return m_Map.end(); }
 
  protected:
   ~CPDF_Dictionary() override;
 
   std::map<CFX_ByteString, CPDF_Object*> m_Map;
 };
 
 #endif  // CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_DICTIONARY_H_