public void setChunkSize(long chunkSize) {
        this.chunkSize = chunkSize;
    }
A Chunk is just a piece of memory split into two parts, a header and a body.
The exact structure of the header and the body of a given Chunk is determined by its type.
<pre>
chunk header struct.
struct ResChunk_header {
uint16_t type;
uint16_t headerSize;
uint32_t size;
}
</pre>

@author dongliu
replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/replugin/ext/parser/struct/ChunkHeader.java