Add fuzzers for SDP and STUN parsing.

webrtc/test/fuzzers/sdp_parser_fuzzer.cc

Index: webrtc/test/fuzzers/sdp_parser_fuzzer.cc
diff --git a/webrtc/test/fuzzers/rtp_packet_fuzzer.cc b/webrtc/test/fuzzers/sdp_parser_fuzzer.cc
similarity index 62%
copy from webrtc/test/fuzzers/rtp_packet_fuzzer.cc
copy to webrtc/test/fuzzers/sdp_parser_fuzzer.cc
index a9efdb96ecfe4f7a77873f54edbb55108c9497f9..f21c991a3e1da9983514f636400e22cf9c989c9d 100644
--- a/webrtc/test/fuzzers/rtp_packet_fuzzer.cc
+++ b/webrtc/test/fuzzers/sdp_parser_fuzzer.cc
@@ -7,23 +7,19 @@
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
-#include "webrtc/modules/rtp_rtcp/source/rtp_packet_received.h"
 
-namespace webrtc {
+#include <stddef.h>
+#include <stdint.h>
 
-void FuzzOneInput(const uint8_t* data, size_t size) {
-  RtpPacketReceived packet;
+#include "webrtc/api/jsepsessiondescription.h"
 
-  packet.Parse(data, size);
+namespace webrtc {
+void FuzzOneInput(const uint8_t* data, size_t size) {
+  std::string message(reinterpret_cast<const char*>(data), size);
+  webrtc::SdpParseError error;
 
-  // Call packet accessors because they have extra checks.
-  packet.Marker();
-  packet.PayloadType();
-  packet.SequenceNumber();
-  packet.Timestamp();
-  packet.Ssrc();
-  packet.Csrcs();
+  std::unique_ptr<webrtc::SessionDescriptionInterface> sdp(
+      CreateSessionDescription("offer", message, &error));
 }
 
 }  // namespace webrtc
-