fuzzer for WebSocketFrameParser

R=inferno@chromium.org
TBR=krasin@chromium.org
BUG=566504

Review URL: https://codereview.chromium.org/1504073002

Cr-Commit-Position: refs/heads/master@{#363686}

testing/libfuzzer/fuzzers/BUILD.gn

@@ -242,3 +242,13 @@ test("pdfium_fuzzer") {
   configs += [ "//third_party/pdfium:pdfium_config" ]
   configs += [ "//v8:external_config" ]
 }
+
+test("websocket_frame_parser_fuzzer") {
+  sources = [
+    "websocket_frame_parser_fuzzer.cc",
+  ]
+  deps = [
+    "//net",
+    "//testing/libfuzzer:libfuzzer_main",
+  ]
+}

testing/libfuzzer/fuzzers/websocket_frame_parser_fuzzer.cc

@@ -0,0 +1,16 @@
+// Copyright (c) 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.
+
+#include <vector>
+
+#include "net/websockets/websocket_frame_parser.h"
+
+// Entry point for LibFuzzer.
+extern "C" int LLVMFuzzerTestOneInput(const unsigned char *data, size_t size) {
+  net::WebSocketFrameParser parser;
+  std::vector<scoped_ptr<net::WebSocketFrameChunk>> frame_chunks;
+  parser.Decode(reinterpret_cast<const char*>(data), size, &frame_chunks);
+
+  return 0;
+}