Fix the fuzz test.

webrtc/pc/jsepsessiondescription.cc

 /*
  *  Copyright 2012 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.
  */
 
@@ skipping 41 matching lines @@
 
 static int GetCandidatePreferenceFromType(const std::string& type) {
   int preference = kPreferenceUnknown;
   if (type == cricket::LOCAL_PORT_TYPE) {
     preference = kPreferenceHost;
   } else if (type == cricket::STUN_PORT_TYPE) {
     preference = kPreferenceReflexive;
   } else if (type == cricket::RELAY_PORT_TYPE) {
     preference = kPreferenceRelayed;
   } else {
-    RTC_NOTREACHED();
+    preference = kPreferenceUnknown;
   }
   return preference;
 }
 
 // Update the connection address for the MediaContentDescription based on the
 // candidates.
 static void UpdateConnectionAddress(
     const JsepCandidateCollection& candidate_collection,
     cricket::ContentDescription* content_description) {
   int port = kDummyPort;
@@ skipping 192 matching lines @@
   const std::string& transport_name = candidate.transport_name();
   for (size_t i = 0; i < description_->contents().size(); ++i) {
     if (transport_name == description_->contents().at(i).name) {
       return static_cast<int>(i);
     }
   }
   return -1;
 }
 
 }  // namespace webrtc