Add a seed corpus for the compact_enc_det fuzzer. Also resolve a couple of post-submit comments from adding the fuzzer. BUG=None Change-Id: I3327e4282903907bd6b1cc8df133fe076398ee59 Reviewed-on: https://chromium-review.googlesource.com/c/1345372 Commit-Queue: Anand Mistry <amistry@chromium.org> Reviewed-by: Max Moroz <mmoroz@chromium.org> Reviewed-by: Jungshik Shin <jshin@chromium.org> Cr-Original-Commit-Position: refs/heads/master@{#610524} Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src Cr-Mirrored-Commit: 10108a04c1798207da106705057c34d1eceec4a1