Add a fuzzer for the pseudoTCP implementation used by chromoting. This

webrtc/test/fuzzers/pseudotcp_parser_fuzzer.cc

+/*
+*  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
+*
+*  Use of this source code is governed by a BSD-style license
+*  that can be found in the LICENSE file in the root of the source
+*  tree. An additional intellectual property rights grant can be found
+*  in the file PATENTS.  All contributing project authors may
+*  be found in the AUTHORS file in the root of the source tree.
+*/
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "webrtc/p2p/base/pseudotcp.h"
+
+namespace webrtc {
+class FakeIPseudoTcpNotify : public cricket::IPseudoTcpNotify {
+ public:
+  void OnTcpOpen(cricket::PseudoTcp* tcp) {}
+  void OnTcpReadable(cricket::PseudoTcp* tcp) {}
+  void OnTcpWriteable(cricket::PseudoTcp* tcp) {}
+  void OnTcpClosed(cricket::PseudoTcp* tcp, uint32_t error) {}
+
+  cricket::IPseudoTcpNotify::WriteResult TcpWritePacket(cricket::PseudoTcp* tcp,
+                                                        const char* buffer,
+                                                        size_t len) {
+    return cricket::IPseudoTcpNotify::WriteResult::WR_SUCCESS;
+  }
+};
+
+struct Environment {
+  cricket::PseudoTcp* ptcp;
+  explicit Environment(cricket::IPseudoTcpNotify* notifier) {
+    ptcp = new cricket::PseudoTcp(notifier, 0);
+  }
+};
+
+Environment* env = new Environment(new FakeIPseudoTcpNotify());
+
+void FuzzOneInput(const uint8_t* data, size_t size) {
+  env->ptcp->NotifyPacket(reinterpret_cast<const char*>(data), size);
+}
+}  // namespace webrtc