#ifndef SkPngCodecBase_DEFINED
#define SkPngCodecBase_DEFINED
#include <cstddef>
#include <cstdint>
#include <memory>
#include <optional>
#include "include/codec/SkCodec.h"
#include "include/core/SkRefCnt.h"
#include "include/private/SkEncodedInfo.h"
#include "include/private/base/SkDebug.h"
#include "include/private/base/SkTemplates.h"
class SkColorPalette;
class SkSampler;
class SkStream;
class SkSwizzler;
enum class SkEncodedImageFormat;
struct SkImageInfo;
template <typename T> class SkSpan;
class SkPngCodecBase : public SkCodec { … };
#endif