Add fuzzer corpora.

webrtc/test/fuzzers/BUILD.gn

Index: webrtc/test/fuzzers/BUILD.gn
diff --git a/webrtc/test/fuzzers/BUILD.gn b/webrtc/test/fuzzers/BUILD.gn
index 29867a1a7db4885948c32268d6ee08f41316da43..7d318f17962a71f7af75d66bcbdc74b0f5441b7d 100644
--- a/webrtc/test/fuzzers/BUILD.gn
+++ b/webrtc/test/fuzzers/BUILD.gn
@@ -86,6 +86,7 @@ webrtc_fuzzer_test("rtcp_receiver_fuzzer") {
   deps = [
     "../../modules/rtp_rtcp/",
   ]
+  seed_corpus = "corpora/rtcp-corpus"
 }
 
 webrtc_fuzzer_test("rtp_packet_fuzzer") {
@@ -95,6 +96,7 @@ webrtc_fuzzer_test("rtp_packet_fuzzer") {
   deps = [
     "../../modules/rtp_rtcp/",
   ]
+  seed_corpus = "corpora/rtp-corpus"

[pbos-webrtc, 2016/06/21 12:37:40]

Is it possible to select more directories here? Otherwise what's the purpose of
with-extra-byte?

[katrielc1, 2016/06/22 09:29:31]

Not currently, no.

I plan to land new fuzzers shortly that use the extra byte; since the corpus CL
is kind of messy I put them all together, but if you think it's nicer I can move
the -extra-byte ones to that CL.

 }
 
 source_set("audio_decoder_fuzzer") {