Remove ICodec_* Interfaces.

core/fxcodec/codec/ccodec_gifmodule.h

Index: core/fxcodec/codec/ccodec_gifmodule.h
diff --git a/core/fxcodec/codec/ccodec_gifmodule.h b/core/fxcodec/codec/ccodec_gifmodule.h
new file mode 100644
index 0000000000000000000000000000000000000000..48780744073983f57c5881852f7cb0c2c72bfacd
--- /dev/null
+++ b/core/fxcodec/codec/ccodec_gifmodule.h
@@ -0,0 +1,63 @@
+// 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_FXCODEC_CODEC_CCODEC_GIFMODULE_H_
+#define CORE_FXCODEC_CODEC_CCODEC_GIFMODULE_H_
+
+#include "core/fxcrt/include/fx_system.h"
+
+struct FXGIF_Context;
+
+class CCodec_GifModule {
+ public:
+  CCodec_GifModule() { FXSYS_memset(m_szLastError, 0, sizeof(m_szLastError)); }
+
+  FXGIF_Context* Start(void* pModule);
+  void Finish(FXGIF_Context* pContext);
+
+  uint32_t GetAvailInput(FXGIF_Context* pContext,
+                         uint8_t** avail_buf_ptr = nullptr);
+  void Input(FXGIF_Context* pContext,
+             const uint8_t* src_buf,
+             uint32_t src_size);
+
+  int32_t ReadHeader(FXGIF_Context* pContext,
+                     int* width,
+                     int* height,
+                     int* pal_num,
+                     void** pal_pp,
+                     int* bg_index,
+                     CFX_DIBAttribute* pAttribute);
+
+  int32_t LoadFrameInfo(FXGIF_Context* pContext, int* frame_num);
+
+  int32_t LoadFrame(FXGIF_Context* pContext,
+                    int frame_num,
+                    CFX_DIBAttribute* pAttribute);
+
+  void (*RecordCurrentPositionCallback)(void* pModule, uint32_t& cur_pos);
+  uint8_t* (*AskLocalPaletteBufCallback)(void* pModule,
+                                         int32_t frame_num,
+                                         int32_t pal_size);
+  FX_BOOL (*InputRecordPositionBufCallback)(void* pModule,
+                                            uint32_t rcd_pos,
+                                            const FX_RECT& img_rc,
+                                            int32_t pal_num,
+                                            void* pal_ptr,
+                                            int32_t delay_time,
+                                            FX_BOOL user_input,
+                                            int32_t trans_index,
+                                            int32_t disposal_method,
+                                            FX_BOOL interlace);
+  void (*ReadScanlineCallback)(void* pModule,
+                               int32_t row_num,
+                               uint8_t* row_buf);
+
+ protected:
+  FX_CHAR m_szLastError[256];
+};
+
+#endif  // CORE_FXCODEC_CODEC_CCODEC_GIFMODULE_H_