Avoid heap allocations in IPAddress

tools/ipc_fuzzer/fuzzer/fuzzer.cc

 // 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.
 
 #include <iostream>
 #include <set>
 #include <string>
 #include <tuple>
 #include <utility>
 #include <vector>
@@ skipping 1273 matching lines @@
       return false;
     p->set_host(host);
     p->set_port(port);
     return true;
   }
 };
 
 template <>
 struct FuzzTraits<net::IPAddress> {
   static bool Fuzz(net::IPAddress* p, Fuzzer* fuzzer) {
-    std::vector<uint8_t> bytes = p->bytes();
+    std::vector<uint8_t> bytes = p->CopyBytesToVector();
     if (!FuzzParam(&bytes, fuzzer))
       return false;
-    net::IPAddress ip_address(bytes);
+    net::IPAddress ip_address(bytes.data(), bytes.size());
     *p = ip_address;
     return true;
   }
 };
 
 template <>
 struct FuzzTraits<net::IPEndPoint> {
   static bool Fuzz(net::IPEndPoint* p, Fuzzer* fuzzer) {
     net::IPAddress ip_address = p->address();
     int port = p->port();
@@ skipping 517 matching lines @@
 #include "tools/ipc_fuzzer/message_lib/all_message_null_macros.h"
 #undef IPC_MESSAGE_DECL
 #define IPC_MESSAGE_DECL(name, ...) \
   (*map)[static_cast<uint32_t>(name::ID)] = FuzzerHelper<name>::Fuzz;
 
 void PopulateFuzzerFunctionMap(FuzzerFunctionMap* map) {
 #include "tools/ipc_fuzzer/message_lib/all_messages.h"
 }
 
 }  // namespace ipc_fuzzer