replace NULL->nullptr in src/remoting.

remoting/client/server_log_entry_client.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 "remoting/client/server_log_entry_client.h"
 
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringize_macros.h"
 #include "base/strings/stringprintf.h"
 #include "base/sys_info.h"
@@ skipping 38 matching lines @@
     case ConnectionToHost::AUTHENTICATED:
       return "authenticated";
     case ConnectionToHost::CONNECTED:
       return kValueSessionStateConnected;
     case ConnectionToHost::FAILED:
       return "connection-failed";
     case ConnectionToHost::CLOSED:
       return kValueSessionStateClosed;
     default:
       NOTREACHED();
-      return NULL;
+      return nullptr;
   }
 }
 
 const char* GetValueError(ErrorCode error) {
   switch (error) {
     // Where possible, these are the same strings that the webapp sends for the
     // corresponding error - see remoting/webapp/server_log_entry.js.
     case protocol::OK:
       return "none";
     case protocol::PEER_IS_OFFLINE:
       return "host-is-offline";
     case protocol::SESSION_REJECTED:
       return "session-rejected";
     case protocol::INCOMPATIBLE_PROTOCOL:
       return "incompatible-protocol";
     case protocol::AUTHENTICATION_FAILED:
       return "authentication-failed";
     case protocol::CHANNEL_CONNECTION_ERROR:
       return "channel-connection-error";
     case protocol::SIGNALING_ERROR:
       return "signaling-error";
     case protocol::SIGNALING_TIMEOUT:
       return "signaling-timeout";
     case protocol::HOST_OVERLOAD:
       return "host-overload";
     case protocol::UNKNOWN_ERROR:
       return "unknown-error";
     default:
       NOTREACHED();
-      return NULL;
+      return nullptr;
   }
 }
 
 }  // namespace
 
 scoped_ptr<ServerLogEntry> MakeLogEntryForSessionStateChange(
     ConnectionToHost::State state,
     ErrorCode error) {
   scoped_ptr<ServerLogEntry> entry(new ServerLogEntry());
   entry->AddRoleField(kValueRoleClient);
@@ skipping 57 matching lines @@
 void AddSessionIdToLogEntry(ServerLogEntry* entry, const std::string& id) {
   entry->Set(kKeySessionId, id);
 }
 
 void AddSessionDurationToLogEntry(ServerLogEntry* entry,
                                   base::TimeDelta duration) {
   entry->Set(kKeySessionDuration, base::Int64ToString(duration.InSeconds()));
 }
 
 }  // namespace remoting