static const uint32_t magic = Header::kMagic;
static const ByteRange magicRange(reinterpret_cast<const uint8_t*>(&magic),
sizeof(magic));
- static constexpr size_t headerTail = sizeof(Header) - sizeof(magic);
DCHECK_GE(searchRange.begin(), wholeRange.begin());
DCHECK_LE(searchRange.end(), wholeRange.end());