Convert //extensions/renderer from scoped_ptr to std::unique_ptr

extensions/renderer/api/display_source/wifi_display/wifi_display_session.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 "extensions/renderer/api/display_source/wifi_display/wifi_display_session.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/timer/timer.h"
@@ skipping 122 matching lines @@
 
 int WiFiDisplaySession::GetNextCSeq(int* initial_peer_cseq) const {
   return ++cseq_;
 }
 
 void WiFiDisplaySession::SendRTSPData(const std::string& message) {
   service_->SendMessage(message);
 }
 
 unsigned WiFiDisplaySession::CreateTimer(int seconds) {
-  scoped_ptr<base::Timer> timer(new base::Timer(true, true));
-  auto insert_ret = timers_.insert(
-      std::pair<int, scoped_ptr<base::Timer>>(
-          ++timer_id_, std::move(timer)));
+  std::unique_ptr<base::Timer> timer(new base::Timer(true, true));
+  auto insert_ret = timers_.insert(std::pair<int, std::unique_ptr<base::Timer>>(
+      ++timer_id_, std::move(timer)));
   DCHECK(insert_ret.second);
   insert_ret.first->second->Start(FROM_HERE,
                base::TimeDelta::FromSeconds(seconds),
                base::Bind(&wds::Source::OnTimerEvent,
                           base::Unretained(wfd_source_.get()),
                           timer_id_));
   return static_cast<unsigned>(timer_id_);
 }
 
 void WiFiDisplaySession::ReleaseTimer(unsigned timer_id) {
@@ skipping 62 matching lines @@
 }
 
 void WiFiDisplaySession::RunTerminateCallback(
     bool success,
     const std::string& error_message) {
   if (!teminate_completion_callback_.is_null())
     teminate_completion_callback_.Run(success, error_message);
 }
 
 }  // namespace extensions