Use size_t for get_row_bytes() in SkJpegCodec

src/codec/SkJpegCodec.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCodec.h"
 #include "SkJpegCodec.h"
 #include "SkJpegDecoderMgr.h"
@@ skipping 66 matching lines @@
 SkJpegCodec::SkJpegCodec(const SkImageInfo& srcInfo, SkStream* stream,
         JpegDecoderMgr* decoderMgr)
     : INHERITED(srcInfo, stream)
     , fDecoderMgr(decoderMgr)
     , fReadyState(decoderMgr->dinfo()->global_state)
 {}
 
 /*
  * Return the row bytes of a particular image type and width
  */
-static int get_row_bytes(const j_decompress_ptr dinfo) {
-    int colorBytes = (dinfo->out_color_space == JCS_RGB565) ? 2 : dinfo->out_color_components;
+static size_t get_row_bytes(const j_decompress_ptr dinfo) {
+    size_t colorBytes = (dinfo->out_color_space == JCS_RGB565) ? 2 : dinfo->out_color_components;
     return dinfo->output_width * colorBytes;
 
 }
 
 /*
  *  Calculate output dimensions based on the provided factors.
  *
  *  Not to be used on the actual jpeg_decompress_struct used for decoding, since it will
  *  incorrectly modify num_components.
  */
@@ skipping 542 matching lines @@
 
         JDIMENSION linesRead = jpeg_read_raw_data(dinfo, yuv, numRowsPerBlock);
         if (linesRead < remainingRows) {
             // FIXME: Handle incomplete YUV decodes without signalling an error.
             return kInvalidInput;
         }
     }
 
     return kSuccess;
 }