Clear decoders after the image decoder in the /Filter array

core/include/fpdfapi/fpdf_objects.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_OBJECTS_H_
 #define CORE_INCLUDE_FPDFAPI_FPDF_OBJECTS_H_
 
 #include "../fxcrt/fx_coordinates.h"
@@ skipping 305 matching lines @@
   FX_FLOAT GetFloat(FX_DWORD index) const { return GetNumber(index); }
 
   void SetAt(FX_DWORD index,
              CPDF_Object* pObj,
              CPDF_IndirectObjects* pObjs = NULL);
 
   void InsertAt(FX_DWORD index,
                 CPDF_Object* pObj,
                 CPDF_IndirectObjects* pObjs = NULL);
 
-  void RemoveAt(FX_DWORD index);
+  void RemoveAt(FX_DWORD index, int nCount = 1);
 
   void Add(CPDF_Object* pObj, CPDF_IndirectObjects* pObjs = NULL);
 
   void AddNumber(FX_FLOAT f);
 
   void AddInteger(int i);
 
   void AddString(const CFX_ByteString& str);
 
   void AddName(const CFX_ByteString& str);
@@ skipping 288 matching lines @@
 
  protected:
   CFX_MapPtrToPtr m_IndirectObjs;
 
   CPDF_Parser* m_pParser;
 
   FX_DWORD m_LastObjNum;
 };
 
 #endif  // CORE_INCLUDE_FPDFAPI_FPDF_OBJECTS_H_