[net/dns] Don't use memset to initialize a struct with string16 members.

net/dns/dns_config_service_win.cc

 // Copyright (c) 2012 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 "net/dns/dns_config_service_win.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 311 matching lines @@
   bool ReadDevolutionSetting(const RegistryReader& reader,
                              DnsSystemSettings::DevolutionSetting& setting) {
     return reader.ReadDword(L"UseDomainNameDevolution", &setting.enabled) &&
            reader.ReadDword(L"DomainNameDevolutionLevel", &setting.level);
   }
 
   virtual void DoWork() OVERRIDE {
     // Should be called on WorkerPool.
     success_ = false;
 
-    DnsSystemSettings settings;
-    memset(&settings, 0, sizeof(settings));
+    DnsSystemSettings settings = {};
     settings.addresses = ReadIpHelper(GAA_FLAG_SKIP_ANYCAST |
                                       GAA_FLAG_SKIP_UNICAST |
                                       GAA_FLAG_SKIP_MULTICAST |
                                       GAA_FLAG_SKIP_FRIENDLY_NAME);
     if (!settings.addresses.get())
       return;  // no point reading the rest
 
     RegistryReader tcpip_reader(kTcpipPath);
     RegistryReader tcpip6_reader(kTcpip6Path);
     RegistryReader dnscache_reader(kDnscachePath);
@@ skipping 206 matching lines @@
 
 }  // namespace internal
 
 // static
 scoped_ptr<DnsConfigService> DnsConfigService::CreateSystemService() {
   return scoped_ptr<DnsConfigService>(new internal::DnsConfigServiceWin());
 }
 
 }  // namespace net