Implement fuzzing of VP9 depacketization.

webrtc/test/fuzzers/vp9_depacketizer_fuzzer.cc

Index: webrtc/test/fuzzers/vp9_depacketizer_fuzzer.cc
diff --git a/webrtc/test/constants.cc b/webrtc/test/fuzzers/vp9_depacketizer_fuzzer.cc
similarity index 63%
copy from webrtc/test/constants.cc
copy to webrtc/test/fuzzers/vp9_depacketizer_fuzzer.cc
index 7e94fe58fb78eeefc395f84be07180df0331243f..f085ea0ea166f64c916afe5b186636445ed578f2 100644
--- a/webrtc/test/constants.cc
+++ b/webrtc/test/fuzzers/vp9_depacketizer_fuzzer.cc
@@ -7,14 +7,12 @@
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
-
-#include "webrtc/test/constants.h"
+#include "webrtc/modules/rtp_rtcp/source/rtp_format_vp9.h"
 
 namespace webrtc {
-namespace test {
-
-const int kTOffsetExtensionId = 6;
-const int kAbsSendTimeExtensionId = 7;
-const int kTransportSequenceNumberExtensionId = 8;
-}  // namespace test
+void FuzzOneInput(const uint8_t* data, size_t size) {
+  webrtc::RtpDepacketizerVp9 depacketizer;
+  webrtc::RtpDepacketizer::ParsedPayload parsed_payload;
+  depacketizer.Parse(&parsed_payload, data, size);
+}
 }  // namespace webrtc