Replace NULL with nullptr in WebSocket code in net/socket/

net/socket/websocket_endpoint_lock_manager.cc

 // Copyright 2014 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/socket/websocket_endpoint_lock_manager.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 61 matching lines @@
   if (socket_it == socket_lock_info_map_.end())
     return;
 
   LockInfoMap::iterator lock_info_it = socket_it->second;
 
   DVLOG(3) << "Unlocking (StreamSocket*)" << socket << " for "
            << lock_info_it->first.ToString() << " ("
            << socket_lock_info_map_.size() << " socket(s) left)";
   socket_lock_info_map_.erase(socket_it);
   DCHECK_EQ(socket, lock_info_it->second.socket);
-  lock_info_it->second.socket = NULL;
+  lock_info_it->second.socket = nullptr;
   UnlockEndpointAfterDelay(lock_info_it->first);
 }
 
 void WebSocketEndpointLockManager::UnlockEndpoint(const IPEndPoint& endpoint) {
   LockInfoMap::iterator lock_info_it = lock_info_map_.find(endpoint);
   if (lock_info_it == lock_info_map_.end())
     return;
   if (lock_info_it->second.socket)
     EraseSocket(lock_info_it);
   UnlockEndpointAfterDelay(endpoint);
 }
 
 bool WebSocketEndpointLockManager::IsEmpty() const {
   return lock_info_map_.empty() && socket_lock_info_map_.empty();
 }
 
 base::TimeDelta WebSocketEndpointLockManager::SetUnlockDelayForTesting(
     base::TimeDelta new_delay) {
   base::TimeDelta old_delay = unlock_delay_;
   unlock_delay_ = new_delay;
   return old_delay;
 }
 
-WebSocketEndpointLockManager::LockInfo::LockInfo() : socket(NULL) {}
+WebSocketEndpointLockManager::LockInfo::LockInfo() : socket(nullptr) {}
 WebSocketEndpointLockManager::LockInfo::~LockInfo() {
   DCHECK(!socket);
 }
 
 WebSocketEndpointLockManager::LockInfo::LockInfo(const LockInfo& rhs)
     : socket(rhs.socket) {
   DCHECK(!rhs.queue);
 }
 
 WebSocketEndpointLockManager::WebSocketEndpointLockManager()
@@ skipping 42 matching lines @@
   next_job->GotEndpointLock();
 }
 
 void WebSocketEndpointLockManager::EraseSocket(
     LockInfoMap::iterator lock_info_it) {
   DVLOG(3) << "Removing (StreamSocket*)" << lock_info_it->second.socket
            << " for " << lock_info_it->first.ToString() << " ("
            << socket_lock_info_map_.size() << " socket(s) left)";
   size_t erased = socket_lock_info_map_.erase(lock_info_it->second.socket);
   DCHECK_EQ(1U, erased);
-  lock_info_it->second.socket = NULL;
+  lock_info_it->second.socket = nullptr;
 }
 
 }  // namespace net