Re-write many calls to WrapUnique() with MakeUnique()

net/dns/dns_session.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_session.h"
 
 #include <stdint.h>
 
 #include <limits>
 #include <utility>
@@ skipping 116 matching lines @@
   initial_timeout_ = GetTimeDeltaForConnectionTypeFromFieldTrialOrDefault(
       "AsyncDnsInitialTimeoutMsByConnectionType", config_.timeout, type);
   max_timeout_ = GetTimeDeltaForConnectionTypeFromFieldTrialOrDefault(
       "AsyncDnsMaxTimeoutMsByConnectionType",
       base::TimeDelta::FromMilliseconds(kDefaultMaxTimeoutMs), type);
 }
 
 void DnsSession::InitializeServerStats() {
   server_stats_.clear();
   for (size_t i = 0; i < config_.nameservers.size(); ++i) {
-    server_stats_.push_back(base::WrapUnique(
-        new ServerStats(initial_timeout_, rtt_buckets_.Pointer())));
+    server_stats_.push_back(base::MakeUnique<ServerStats>(
+        initial_timeout_, rtt_buckets_.Pointer()));
   }
 }
 
 void DnsSession::OnConnectionTypeChanged(
     NetworkChangeNotifier::ConnectionType type) {
   UpdateTimeouts(type);
   const char* kTrialName = "AsyncDnsFlushServerStatsOnConnectionTypeChange";
   if (base::FieldTrialList::FindFullName(kTrialName) == "enable") {
     RecordServerStats();
     InitializeServerStats();
@@ skipping 197 matching lines @@
 
   timeout = std::max(timeout, base::TimeDelta::FromMilliseconds(kMinTimeoutMs));
 
   // The timeout still doubles every full round.
   unsigned num_backoffs = attempt / config_.nameservers.size();
 
   return std::min(timeout * (1 << num_backoffs), max_timeout_);
 }
 
 }  // namespace net