Rename encoders to Sk*ImageEncoder

src/codec/SkJpegUtility_codec.h

-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-#ifndef SkJpegUtility_codec_DEFINED
-#define SkJpegUtility_codec_DEFINED
-
-#include "SkStream.h"
-
-#include <setjmp.h>
-// stdio is needed for jpeglib
-#include <stdio.h>
-
-extern "C" {
-    #include "jpeglib.h"
-    #include "jerror.h"
-}
-
-/*
- * Error handling struct
- */
-struct skjpeg_error_mgr : jpeg_error_mgr {
-    jmp_buf fJmpBuf;
-};
-
-/*
- * Error handling function
- */
-void skjpeg_err_exit(j_common_ptr cinfo);
-
-/*
- * Source handling struct for that allows libjpeg to use our stream object
- */
-struct skjpeg_source_mgr : jpeg_source_mgr {
-    skjpeg_source_mgr(SkStream* stream);
-
-    SkStream* fStream; // unowned
-    enum {
-        // TODO (msarett): Experiment with different buffer sizes.
-        // This size was chosen because it matches SkImageDecoder.
-        kBufferSize = 1024
-    };
-    uint8_t fBuffer[kBufferSize];
-};
-
-#endif