Remove ICodec_* Interfaces.

core/fxcodec/codec/fx_codec_flate.cpp

 // 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
 
 #include "core/fxcodec/codec/codec_int.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 879 matching lines @@
     }
   } else {
     FPDFAPI_FlateOutput(m_pFlate, m_pScanline, m_Pitch);
   }
   return m_pScanline;
 }
 uint32_t CCodec_FlateScanlineDecoder::GetSrcOffset() {
   return FPDFAPI_FlateGetTotalIn(m_pFlate);
 }
 
-ICodec_ScanlineDecoder* CCodec_FlateModule::CreateDecoder(
+CCodec_ScanlineDecoder* CCodec_FlateModule::CreateDecoder(
     const uint8_t* src_buf,
     uint32_t src_size,
     int width,
     int height,
     int nComps,
     int bpc,
     int predictor,
     int Colors,
     int BitsPerComponent,
     int Columns) {
@@ skipping 86 matching lines @@
                                    uint32_t src_size,
                                    uint8_t*& dest_buf,
                                    uint32_t& dest_size) {
   dest_size = src_size + src_size / 1000 + 12;
   dest_buf = FX_Alloc(uint8_t, dest_size);
   unsigned long temp_size = dest_size;
   FPDFAPI_FlateCompress(dest_buf, &temp_size, src_buf, src_size);
   dest_size = (uint32_t)temp_size;
   return TRUE;
 }