replace NULL->nullptr in src/remoting.

remoting/host/desktop_process.cc

 // Copyright (c) 2012 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.
 //
 // This file implements the Windows service controlling Me2Me host processes
 // running within user sessions.
 
 #include "remoting/host/desktop_process.h"
 
 #include "base/bind.h"
@@ skipping 63 matching lines @@
   DCHECK(caller_task_runner_->BelongsToCurrentThread());
 
   VLOG(1) << "IPC: desktop <- daemon (" << peer_pid << ")";
 }
 
 void DesktopProcess::OnChannelError() {
   // Shutdown the desktop process.
   daemon_channel_.reset();
   if (desktop_agent_.get()) {
     desktop_agent_->Stop();
-    desktop_agent_ = NULL;
+    desktop_agent_ = nullptr;
   }
 
-  caller_task_runner_ = NULL;
-  input_task_runner_ = NULL;
+  caller_task_runner_ = nullptr;
+  input_task_runner_ = nullptr;
   desktop_environment_factory_.reset();
 }
 
 bool DesktopProcess::Start(
     scoped_ptr<DesktopEnvironmentFactory> desktop_environment_factory) {
   DCHECK(caller_task_runner_->BelongsToCurrentThread());
   DCHECK(!desktop_environment_factory_);
   DCHECK(desktop_environment_factory);
 
   desktop_environment_factory_ = desktop_environment_factory.Pass();
@@ skipping 25 matching lines @@
   // Create a desktop agent.
   desktop_agent_ = new DesktopSessionAgent(audio_task_runner,
                                            caller_task_runner_,
                                            input_task_runner_,
                                            io_task_runner,
                                            video_capture_task_runner);
 
   // Start the agent and create an IPC channel to talk to it.
   IPC::PlatformFileForTransit desktop_pipe;
   if (!desktop_agent_->Start(AsWeakPtr(), &desktop_pipe)) {
-    desktop_agent_ = NULL;
-    caller_task_runner_ = NULL;
-    input_task_runner_ = NULL;
+    desktop_agent_ = nullptr;
+    caller_task_runner_ = nullptr;
+    input_task_runner_ = nullptr;
     desktop_environment_factory_.reset();
     return false;
   }
 
   // Connect to the daemon.
   daemon_channel_ = IPC::ChannelProxy::Create(daemon_channel_name_,
                                               IPC::Channel::MODE_CLIENT,
                                               this,
                                               io_task_runner.get());
 
@@ skipping 11 matching lines @@
   base::snprintf(message, sizeof(message),
                  "Requested by %s at %s, line %d.",
                  function_name.c_str(), file_name.c_str(), line_number);
   base::debug::Alias(message);
 
   // The daemon requested us to crash the process.
   CHECK(false) << message;
 }
 
 } // namespace remoting