nextChunk( data, chunk ) {

			if ( chunk.cur >= chunk.end ) {

				return 0;

			}

			this.position = chunk.cur;

			try {

				const next = this.readChunk( data );
				chunk.cur += next.size;
				return next.id;

			} catch ( e ) {

				this.debugMessage( 'Unable to read chunk at ' + this.position );
				return 0;

			}

		}
Move to the next data chunk.

@method nextChunk
@param {DataView} data Dataview.
@param {Object} chunk Data chunk.