Replace NULL with nullptr in all C++ files.

webrtc/examples/peerconnection/client/linux/main.cc

 /*
  *  Copyright 2012 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.
  */
 
 #include <gtk/gtk.h>
 
 #include "webrtc/examples/peerconnection/client/conductor.h"
 #include "webrtc/examples/peerconnection/client/flagdefs.h"
 #include "webrtc/examples/peerconnection/client/linux/main_wnd.h"
 #include "webrtc/examples/peerconnection/client/peer_connection_client.h"
 
 #include "webrtc/base/ssladapter.h"
 #include "webrtc/base/thread.h"
 
 class CustomSocketServer : public rtc::PhysicalSocketServer {
  public:
   CustomSocketServer(rtc::Thread* thread, GtkMainWnd* wnd)
-      : thread_(thread), wnd_(wnd), conductor_(NULL), client_(NULL) {}
+      : thread_(thread), wnd_(wnd), conductor_(nullptr), client_(nullptr) {}
   virtual ~CustomSocketServer() {}
 
   void set_client(PeerConnectionClient* client) { client_ = client; }
   void set_conductor(Conductor* conductor) { conductor_ = conductor; }
 
   // Override so that we can also pump the GTK message loop.
   virtual bool Wait(int cms, bool process_io) {
     // Pump GTK events.
     // TODO(henrike): We really should move either the socket server or UI to a
     // different thread.  Alternatively we could look at merging the two loops
     // by implementing a dispatcher for the socket server and/or use
     // g_main_context_set_poll_func.
       while (gtk_events_pending())
         gtk_main_iteration();
 
-    if (!wnd_->IsWindow() && !conductor_->connection_active() &&
-        client_ != NULL && !client_->is_connected()) {
-      thread_->Quit();
+      if (!wnd_->IsWindow() && !conductor_->connection_active() &&
+          client_ != nullptr && !client_->is_connected()) {
+        thread_->Quit();
     }
     return rtc::PhysicalSocketServer::Wait(0/*cms == -1 ? 1 : cms*/,
                                                  process_io);
   }
 
  protected:
   rtc::Thread* thread_;
   GtkMainWnd* wnd_;
   Conductor* conductor_;
   PeerConnectionClient* client_;
 };
 
 int main(int argc, char* argv[]) {
   gtk_init(&argc, &argv);
   // g_type_init API is deprecated (and does nothing) since glib 2.35.0, see:
   // https://mail.gnome.org/archives/commits-list/2012-November/msg07809.html
 #if !GLIB_CHECK_VERSION(2, 35, 0)
     g_type_init();
 #endif
   // g_thread_init API is deprecated since glib 2.31.0, see release note:
   // http://mail.gnome.org/archives/gnome-announce-list/2011-October/msg00041.html
 #if !GLIB_CHECK_VERSION(2, 31, 0)
-    g_thread_init(NULL);
+  g_thread_init(nullptr);
 #endif
 
   rtc::FlagList::SetFlagsFromCommandLine(&argc, argv, true);
   if (FLAG_help) {
-    rtc::FlagList::Print(NULL, false);
+    rtc::FlagList::Print(nullptr, false);
     return 0;
   }
 
   // Abort if the user specifies a port that is outside the allowed
   // range [1, 65535].
   if ((FLAG_port < 1) || (FLAG_port > 65535)) {
     printf("Error: %i is not a valid port.\n", FLAG_port);
     return -1;
   }
 
@@ skipping 11 matching lines @@
   rtc::scoped_refptr<Conductor> conductor(
       new rtc::RefCountedObject<Conductor>(&client, &wnd));
   socket_server.set_client(&client);
   socket_server.set_conductor(conductor);
 
   thread->Run();
 
   // gtk_main();
   wnd.Destroy();
 
-  thread->set_socketserver(NULL);
+  thread->set_socketserver(nullptr);
   // TODO(henrike): Run the Gtk main loop to tear down the connection.
   /*
   while (gtk_events_pending()) {
     gtk_main_iteration();
   }
   */
   rtc::CleanupSSL();
   return 0;
 }