Keep only base/extractor.[cc|h].

third_party/lzma/v4_65/files/CPP/7zip/Compress/CopyCoder.cpp

-// Compress/CopyCoder.cpp
-
-#include "StdAfx.h"
-
-extern "C"
-{
-#include "../../../C/Alloc.h"
-}
-
-#include "../Common/StreamUtils.h"
-
-#include "CopyCoder.h"
-
-namespace NCompress {
-
-static const UInt32 kBufferSize = 1 << 17;
-
-CCopyCoder::~CCopyCoder()
-{
-  ::MidFree(_buffer);
-}
-
-STDMETHODIMP CCopyCoder::Code(ISequentialInStream *inStream,
-    ISequentialOutStream *outStream,
-    const UInt64 * /* inSize */, const UInt64 *outSize,
-    ICompressProgressInfo *progress)
-{
-  if (_buffer == 0)
-  {
-    _buffer = (Byte *)::MidAlloc(kBufferSize);
-    if (_buffer == 0)
-      return E_OUTOFMEMORY;
-  }
-
-  TotalSize = 0;
-  for (;;)
-  {
-    UInt32 realProcessedSize;
-    UInt32 size = kBufferSize;
-    if (outSize != 0)
-      if (size > *outSize - TotalSize)
-        size = (UInt32)(*outSize - TotalSize);
-    RINOK(inStream->Read(_buffer, size, &realProcessedSize));
-    if (realProcessedSize == 0)
-      break;
-    RINOK(WriteStream(outStream, _buffer, realProcessedSize));
-    TotalSize += realProcessedSize;
-    if (progress != NULL)
-    {
-      RINOK(progress->SetRatioInfo(&TotalSize, &TotalSize));
-    }
-  }
-  return S_OK;
-}
-
-STDMETHODIMP CCopyCoder::GetInStreamProcessedSize(UInt64 *value)
-{
-  *value = TotalSize;
-  return S_OK;
-}
-
-}