DecodeRowCallback  339 tools/imagediff/image_diff_png.cc                               &DecodeRowCallback, &DecodeEndCallback);
DecodeRowCallback  419 ui/gfx/codec/png_codec.cc                               &DecodeRowCallback, &DecodeEndCallback);
DecodeRowCallback  457 ui/gfx/codec/png_codec.cc                               &DecodeRowCallback, &DecodeEndCallback);