Cleanup: Remove unused CPDF_Stream::Clone().

Cloning a CPDF_Stream actually happens via CPDF_Object::Clone().

Transitively, remove:
- GetStreamFilter()
-- all the filters.

R=jam@chromium.org

Review URL: https://codereview.chromium.org/1288543002 .

2 files changed, 0 insertions, 70 deletions

diff --git a/core/include/fpdfapi/fpdf_objects.h b/core/include/fpdfapi/fpdf_objects.h
index 250b6e00d8..c2d838d35b 100644
--- a/core/include/fpdfapi/fpdf_objects.h
+++ b/core/include/fpdfapi/fpdf_objects.h
@@ -37,8 +37,6 @@ class IFX_FileRead;
 #define PDFOBJ_NULL 8
 #define PDFOBJ_REFERENCE 9
 
-typedef IFX_FileStream* (*FPDF_LPFCloneStreamCallback)(CPDF_Stream* pStream,
-                                                       void* pUserData);
 class CPDF_Object {
  public:
   int GetType() const { return m_Type; }
@@ -427,8 +425,6 @@ class CPDF_Stream : public CPDF_Object {
 
   FX_BOOL Identical(CPDF_Stream* pOther) const;
 
-  CPDF_StreamFilter* GetStreamFilter(FX_BOOL bRaw = FALSE) const;
-
   FX_DWORD GetRawSize() const { return m_dwSize; }
 
   FX_BOOL ReadRawData(FX_FILESIZE start_pos,
@@ -437,10 +433,6 @@ class CPDF_Stream : public CPDF_Object {
 
   FX_BOOL IsMemoryBased() const { return m_GenNum == (FX_DWORD)-1; }
 
-  CPDF_Stream* Clone(FX_BOOL bDirect,
-                     FPDF_LPFCloneStreamCallback lpfCallback,
-                     void* pUserData) const;
-
  protected:
   ~CPDF_Stream();
 
@@ -507,39 +499,7 @@ class CPDF_StreamAcc {
 
   uint8_t* m_pSrcData;
 };
-CFX_DataFilter* FPDF_CreateFilter(const CFX_ByteStringC& name,
-                                  const CPDF_Dictionary* pParam,
-                                  int width = 0,
-                                  int height = 0);
-#define FPDF_FILTER_BUFFER_SIZE 20480
-class CPDF_StreamFilter {
- public:
-  ~CPDF_StreamFilter();
-
-  FX_DWORD ReadBlock(uint8_t* buffer, FX_DWORD size);
-
-  FX_DWORD GetSrcPos() { return m_SrcOffset; }
-
-  const CPDF_Stream* GetStream() { return m_pStream; }
-
- protected:
-  CPDF_StreamFilter() {}
 
-  FX_DWORD ReadLeftOver(uint8_t* buffer, FX_DWORD buf_size);
-
-  const CPDF_Stream* m_pStream;
-
-  CFX_DataFilter* m_pFilter;
-
-  CFX_BinaryBuf* m_pBuffer;
-
-  FX_DWORD m_BufOffset;
-
-  FX_DWORD m_SrcOffset;
-
-  uint8_t m_SrcBuffer[FPDF_FILTER_BUFFER_SIZE];
-  friend class CPDF_Stream;
-};
 class CPDF_Null : public CPDF_Object {
  public:
   static CPDF_Null* Create() { return new CPDF_Null(); }
diff --git a/core/include/fxcrt/fx_basic.h b/core/include/fxcrt/fx_basic.h
index 73b99be549..cd6d4e048d 100644
--- a/core/include/fxcrt/fx_basic.h
+++ b/core/include/fxcrt/fx_basic.h
@@ -1032,36 +1032,6 @@ class IFX_Pause {
   virtual ~IFX_Pause() {}
   virtual FX_BOOL NeedToPauseNow() = 0;
 };
-class CFX_DataFilter {
- public:
-  virtual ~CFX_DataFilter();
-
-  void SetDestFilter(CFX_DataFilter* pFilter);
-
-  FX_BOOL IsEOF() const { return m_bEOF; }
-
-  FX_DWORD GetSrcPos() { return m_SrcPos; }
-
-  void FilterIn(const uint8_t* src_buf,
-                FX_DWORD src_size,
-                CFX_BinaryBuf& dest_buf);
-
-  void FilterFinish(CFX_BinaryBuf& dest_buf);
-
- protected:
-  CFX_DataFilter();
-  virtual void v_FilterIn(const uint8_t* src_buf,
-                          FX_DWORD src_size,
-                          CFX_BinaryBuf& dest_buf) = 0;
-  virtual void v_FilterFinish(CFX_BinaryBuf& dest_buf) = 0;
-  void ReportEOF(FX_DWORD left_input);
-
-  FX_BOOL m_bEOF;
-
-  FX_DWORD m_SrcPos;
-
-  CFX_DataFilter* m_pDestFilter;
-};
 
 template <typename T>
 class CFX_AutoRestorer {