Replace NULL with nullptr or null in webrtc/base/.

webrtc/base/httpserver.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 74 matching lines @@
   for (std::list<Connection*>::const_iterator it = connections.begin();
       it != connections.end(); ++it) {
     (*it)->InitiateClose(force);
   }
 }
 
 HttpServer::Connection*
 HttpServer::Find(int connection_id) {
   ConnectionMap::iterator it = connections_.find(connection_id);
   if (it == connections_.end())
-    return NULL;
+    return nullptr;
   return it->second;
 }
 
 void
 HttpServer::Remove(int connection_id) {
   ConnectionMap::iterator it = connections_.find(connection_id);
   if (it == connections_.end()) {
     RTC_NOTREACHED();
     return;
   }
   Connection* connection = it->second;
   connections_.erase(it);
   SignalConnectionClosed(this, connection_id, connection->EndProcess());
   delete connection;
   if (closing_ && connections_.empty()) {
     closing_ = false;
     SignalCloseAllComplete(this);
   }
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // HttpServer::Connection
 ///////////////////////////////////////////////////////////////////////////////
 
 HttpServer::Connection::Connection(int connection_id, HttpServer* server)
-  : connection_id_(connection_id), server_(server),
-    current_(NULL), signalling_(false), close_(false) {
-}
+    : connection_id_(connection_id),
+      server_(server),
+      current_(nullptr),
+      signalling_(false),
+      close_(false) {}
 
 HttpServer::Connection::~Connection() {
   // It's possible that an object hosted inside this transaction signalled
   // an event which caused the connection to close.
   Thread::Current()->Dispose(current_);
 }
 
 void
 HttpServer::Connection::BeginProcess(StreamInterface* stream) {
   base_.notify(this);
   base_.attach(stream);
   current_ = new HttpServerTransaction(connection_id_);
   if (base_.mode() != HM_CONNECT)
     base_.recv(&current_->request);
 }
 
 StreamInterface*
 HttpServer::Connection::EndProcess() {
-  base_.notify(NULL);
+  base_.notify(nullptr);
   base_.abort(HE_DISCONNECTED);
   return base_.detach();
 }
 
 void
 HttpServer::Connection::Respond(HttpServerTransaction* transaction) {
-  RTC_DCHECK(current_ == NULL);
+  RTC_DCHECK(current_ == nullptr);
   current_ = transaction;
   if (current_->response.begin() == current_->response.end()) {
     current_->response.set_error(HC_INTERNAL_SERVER_ERROR);
   }
   bool keep_alive = HttpShouldKeepAlive(current_->request);
   current_->response.setHeader(HH_CONNECTION,
                                keep_alive ? "Keep-Alive" : "Close",
                                false);
   close_ = !HttpShouldKeepAlive(current_->response);
   base_.send(&current_->response);
 }
 
 void
 HttpServer::Connection::InitiateClose(bool force) {
-  bool request_in_progress = (HM_SEND == base_.mode()) || (NULL == current_);
+  bool request_in_progress = (HM_SEND == base_.mode()) || (nullptr == current_);
   if (!signalling_ && (force || !request_in_progress)) {
     server_->Remove(connection_id_);
   } else {
     close_ = true;
   }
 }
 
 //
 // IHttpNotify Implementation
 //
 
 HttpError
 HttpServer::Connection::onHttpHeaderComplete(bool chunked, size_t& data_size) {
   if (data_size == SIZE_UNKNOWN) {
     data_size = 0;
   }
-  RTC_DCHECK(current_ != NULL);
+  RTC_DCHECK(current_ != nullptr);
   bool custom_document = false;
   server_->SignalHttpRequestHeader(server_, current_, &custom_document);
   if (!custom_document) {
     current_->request.document.reset(new MemoryStream);
   }
   return HE_NONE;
 }
 
 void
 HttpServer::Connection::onHttpComplete(HttpMode mode, HttpError err) {
   if (mode == HM_SEND) {
-    RTC_DCHECK(current_ != NULL);
+    RTC_DCHECK(current_ != nullptr);
     signalling_ = true;
     server_->SignalHttpRequestComplete(server_, current_, err);
     signalling_ = false;
     if (close_) {
       // Force a close
       err = HE_DISCONNECTED;
     }
   }
   if (err != HE_NONE) {
     server_->Remove(connection_id_);
   } else if (mode == HM_CONNECT) {
     base_.recv(&current_->request);
   } else if (mode == HM_RECV) {
-    RTC_DCHECK(current_ != NULL);
+    RTC_DCHECK(current_ != nullptr);
     // TODO: do we need this?
     //request_.document_->rewind();
     HttpServerTransaction* transaction = current_;
-    current_ = NULL;
+    current_ = nullptr;
     server_->SignalHttpRequest(server_, transaction);
   } else if (mode == HM_SEND) {
     Thread::Current()->Dispose(current_->response.document.release());
     current_->request.clear(true);
     current_->response.clear(true);
     base_.recv(&current_->request);
   } else {
     RTC_NOTREACHED();
   }
 }
@@ skipping 38 matching lines @@
 }
 
 void HttpListenServer::StopListening() {
   if (listener_) {
     listener_->Close();
   }
 }
 
 void HttpListenServer::OnReadEvent(AsyncSocket* socket) {
   RTC_DCHECK(socket == listener_.get());
-  AsyncSocket* incoming = listener_->Accept(NULL);
+  AsyncSocket* incoming = listener_->Accept(nullptr);
   if (incoming) {
     StreamInterface* stream = new SocketStream(incoming);
     //stream = new LoggingAdapter(stream, LS_VERBOSE, "HttpServer", false);
     HandleConnection(stream);
   }
 }
 
 void HttpListenServer::OnConnectionClosed(HttpServer* server,
                                           int connection_id,
                                           StreamInterface* stream) {
   Thread::Current()->Dispose(stream);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 }  // namespace rtc