Add a fuzzer for srtp_unprotect in libsrtp.

testing/libfuzzer/fuzzers/BUILD.gn

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Individual libfuzzer tests that didn't find their home yet.
 
 import("//build/config/features.gni")
 import("//media/media_options.gni")
 import("//testing/libfuzzer/fuzzer_test.gni")
 
@@ skipping 125 matching lines @@
 
 fuzzer_test("usrsctp_fuzzer") {
   sources = [
     "usrsctp_fuzzer.cc",
   ]
   deps = [
     "//third_party/usrsctp",
   ]
 }
 
+fuzzer_test("libsrtp_fuzzer") {
+  sources = [
+    "libsrtp_fuzzer.cc",
+  ]
+  deps = [
+    "//third_party/libsrtp",
+  ]
+  libfuzzer_options = [ "max_len=1000" ]
+}
+
 fuzzer_test("base_json_reader_fuzzer") {
   sources = [
     "base_json_reader_fuzzer.cc",
   ]
   deps = [
     "//base",
   ]
 }
 
 fuzzer_test("gfx_png_image_fuzzer") {
@@ skipping 160 matching lines @@
 fuzzer_test("icu_break_iterator_utf32_fuzzer") {
   sources = [
     "icu_break_iterator_utf32_fuzzer.cc",
   ]
   deps = [
     "//base",
     "//base:i18n",
     "//third_party/icu",
   ]
 }