Add fuzzers for SDP and STUN parsing.

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 3e59339299fb33cc65f0430c59822814d9e4f20c..319427aad52b541dfd5702e84a209f73ab509170 100644
--- a/webrtc/test/fuzzers/BUILD.gn
+++ b/webrtc/test/fuzzers/BUILD.gn
@@ -84,6 +84,33 @@ webrtc_fuzzer_test("rtp_packet_fuzzer") {
   ]
 }
 
+webrtc_fuzzer_test("sdp_parser_fuzzer") {
+  sources = [
+    "sdp_parser_fuzzer.cc",
+  ]
+  deps = [
+    "//webrtc/api:libjingle_peerconnection",
+  ]
+}
+
+webrtc_fuzzer_test("stun_parser_fuzzer") {
+  sources = [
+    "stun_parser_fuzzer.cc",
+  ]
+  deps = [
+    "//webrtc/p2p:rtc_p2p",
+  ]
+}
+
+webrtc_fuzzer_test("stun_validator_fuzzer") {
+  sources = [
+    "stun_validator_fuzzer.cc",
+  ]
+  deps = [
+    "//webrtc/p2p:rtc_p2p",
+  ]
+}
+
 source_set("audio_decoder_fuzzer") {
   public_configs = [ "../..:common_inherited_config" ]
   sources = [