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

webrtc/base/win32socketserver.cc

Index: webrtc/base/win32socketserver.cc
diff --git a/webrtc/base/win32socketserver.cc b/webrtc/base/win32socketserver.cc
index adf360b5ff17f3e42531257d4be7c062f83cf331..3ee88dbaf585e4c0f1efb61932d7f75cfda31538 100644
--- a/webrtc/base/win32socketserver.cc
+++ b/webrtc/base/win32socketserver.cc
@@ -165,7 +165,7 @@ class Win32Socket::EventSink : public Win32Window {
 };
 
 void Win32Socket::EventSink::Dispose() {
-  parent_ = NULL;
+  parent_ = nullptr;
   if (::IsWindow(handle())) {
     ::DestroyWindow(handle());
   } else {
@@ -227,9 +227,14 @@ void Win32Socket::EventSink::OnNcDestroy() {
 /////////////////////////////////////////////////////////////////////////////
 
 Win32Socket::Win32Socket()
-    : socket_(INVALID_SOCKET), error_(0), state_(CS_CLOSED), connect_time_(0),
-      closing_(false), close_error_(0), sink_(NULL), dns_(NULL) {
-}
+    : socket_(INVALID_SOCKET),
+      error_(0),
+      state_(CS_CLOSED),
+      connect_time_(0),
+      closing_(false),
+      close_error_(0),
+      sink_(nullptr),
+      dns_(nullptr) {}
 
 Win32Socket::~Win32Socket() {
   Close();
@@ -238,7 +243,7 @@ Win32Socket::~Win32Socket() {
 bool Win32Socket::CreateT(int family, int type) {
   Close();
   int proto = (SOCK_DGRAM == type) ? IPPROTO_UDP : IPPROTO_TCP;
-  socket_ = ::WSASocket(family, type, proto, NULL, NULL, 0);
+  socket_ = ::WSASocket(family, type, proto, nullptr, 0, 0);
   if (socket_ == INVALID_SOCKET) {
     UpdateLastError();
     return false;
@@ -487,14 +492,14 @@ Win32Socket* Win32Socket::Accept(SocketAddress* out_addr) {
   SOCKET s = ::accept(socket_, reinterpret_cast<sockaddr*>(&saddr), &addr_len);
   UpdateLastError();
   if (s == INVALID_SOCKET)
-    return NULL;
+    return nullptr;
   if (out_addr)
     SocketAddressFromSockAddrStorage(saddr, out_addr);
   Win32Socket* socket = new Win32Socket;
   if (0 == socket->Attach(s))
     return socket;
   delete socket;
-  return NULL;
+  return nullptr;
 }
 
 int Win32Socket::Close() {
@@ -509,11 +514,11 @@ int Win32Socket::Close() {
   if (dns_) {
     WSACancelAsyncRequest(dns_->handle);
     delete dns_;
-    dns_ = NULL;
+    dns_ = nullptr;
   }
   if (sink_) {
     sink_->Dispose();
-    sink_ = NULL;
+    sink_ = nullptr;
   }
   addr_.Clear();
   state_ = CS_CLOSED;
@@ -552,17 +557,17 @@ int Win32Socket::EstimateMTU(uint16_t* mtu) {
 }
 
 void Win32Socket::CreateSink() {
-  RTC_DCHECK(NULL == sink_);
+  RTC_DCHECK(nullptr == sink_);
 
   // Create window
   sink_ = new EventSink(this);
-  sink_->Create(NULL, L"EventSink", 0, 0, 0, 0, 10, 10);
+  sink_->Create(nullptr, L"EventSink", 0, 0, 0, 0, 10, 10);
 }
 
 bool Win32Socket::SetAsync(int events) {
-  if (NULL == sink_) {
+  if (nullptr == sink_) {
     CreateSink();
-    RTC_DCHECK(NULL != sink_);
+    RTC_DCHECK(nullptr != sink_);
   }
 
   // start the async select
@@ -709,7 +714,7 @@ void Win32Socket::OnDnsNotify(HANDLE task, int error) {
     SignalCloseEvent(this, error_);
   } else {
     delete dns_;
-    dns_ = NULL;
+    dns_ = nullptr;
   }
 }
 
@@ -725,16 +730,16 @@ Win32SocketServer::Win32SocketServer(MessageQueue* message_queue)
     : message_queue_(message_queue),
       wnd_(this),
       posted_(false),
-      hdlg_(NULL) {
+      hdlg_(nullptr) {
   if (s_wm_wakeup_id == 0)
     s_wm_wakeup_id = RegisterWindowMessage(L"WM_WAKEUP");
-  if (!wnd_.Create(NULL, kWindowName, 0, 0, 0, 0, 0, 0)) {
+  if (!wnd_.Create(nullptr, kWindowName, 0, 0, 0, 0, 0, 0)) {
     LOG_GLE(LS_ERROR) << "Failed to create message window.";
   }
 }
 
 Win32SocketServer::~Win32SocketServer() {
-  if (wnd_.handle() != NULL) {
+  if (wnd_.handle() != nullptr) {
     KillTimer(wnd_.handle(), 1);
     wnd_.Destroy();
   }
@@ -758,7 +763,7 @@ AsyncSocket* Win32SocketServer::CreateAsyncSocket(int family, int type) {
     return socket;
   }
   delete socket;
-  return NULL;
+  return nullptr;
 }
 
 void Win32SocketServer::SetMessageQueue(MessageQueue* queue) {
@@ -773,12 +778,12 @@ bool Win32SocketServer::Wait(int cms, bool process_io) {
     uint32_t start = Time();
     do {
       MSG msg;
-      SetTimer(wnd_.handle(), 0, cms, NULL);
+      SetTimer(wnd_.handle(), 0, cms, nullptr);
       // Get the next available message. If we have a modeless dialog, give
       // give the message to IsDialogMessage, which will return true if it
       // was a message for the dialog that it handled internally.
       // Otherwise, dispatch as usual via Translate/DispatchMessage.
-      b = GetMessage(&msg, NULL, 0, 0);
+      b = GetMessage(&msg, nullptr, 0, 0);
       if (b == -1) {
         LOG_GLE(LS_ERROR) << "GetMessage failed.";
         return false;
@@ -794,7 +799,7 @@ bool Win32SocketServer::Wait(int cms, bool process_io) {
     // Sit and wait forever for a WakeUp. This is the Thread::Send case.
     RTC_DCHECK(cms == -1);
     MSG msg;
-    b = GetMessage(&msg, NULL, s_wm_wakeup_id, s_wm_wakeup_id);
+    b = GetMessage(&msg, nullptr, s_wm_wakeup_id, s_wm_wakeup_id);
     {
       CritScope scope(&cs_);
       posted_ = false;
@@ -844,7 +849,7 @@ void Win32SocketServer::Pump() {
   if (delay == -1) {
     KillTimer(wnd_.handle(), 1);
   } else {
-    SetTimer(wnd_.handle(), 1, delay, NULL);
+    SetTimer(wnd_.handle(), 1, delay, nullptr);
   }
 }