replace NULL->nullptr in src/remoting.

remoting/host/register_support_host_request_unittest.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.
 
 #include "remoting/host/register_support_host_request.h"
 
 #include "base/bind.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
 #include "base/observer_list.h"
@@ skipping 67 matching lines @@
 TEST_F(RegisterSupportHostRequestTest, Send) {
   // |iq_request| is freed by RegisterSupportHostRequest.
   int64 start_time = static_cast<int64>(base::Time::Now().ToDoubleT());
 
   scoped_ptr<RegisterSupportHostRequest> request(
       new RegisterSupportHostRequest(&signal_strategy_, key_pair_,
                                      kTestBotJid,
                                      base::Bind(&MockCallback::OnResponse,
                                                 base::Unretained(&callback_))));
 
-  XmlElement* sent_iq = NULL;
+  XmlElement* sent_iq = nullptr;
   EXPECT_CALL(signal_strategy_, GetNextId())
       .WillOnce(Return(kStanzaId));
   EXPECT_CALL(signal_strategy_, SendStanzaPtr(NotNull()))
       .WillOnce(DoAll(SaveArg<0>(&sent_iq), Return(true)));
 
   request->OnSignalStrategyStateChange(SignalStrategy::CONNECTED);
   base::RunLoop().RunUntilIdle();
 
   // Verify format of the query.
   scoped_ptr<XmlElement> stanza(sent_iq);
-  ASSERT_TRUE(stanza != NULL);
+  ASSERT_TRUE(stanza != nullptr);
 
   EXPECT_EQ(stanza->Attr(buzz::QName(std::string(), "to")),
             std::string(kTestBotJid));
   EXPECT_EQ(stanza->Attr(buzz::QName(std::string(), "type")), "set");
 
   EXPECT_EQ(QName(kChromotingXmlNamespace, "register-support-host"),
             stanza->FirstElement()->Name());
 
   QName signature_tag(kChromotingXmlNamespace, "signature");
   XmlElement* signature = stanza->FirstElement()->FirstNamed(signature_tag);
-  ASSERT_TRUE(signature != NULL);
-  EXPECT_TRUE(stanza->NextNamed(signature_tag) == NULL);
+  ASSERT_TRUE(signature != nullptr);
+  EXPECT_TRUE(stanza->NextNamed(signature_tag) == nullptr);
 
   std::string time_str =
       signature->Attr(QName(kChromotingXmlNamespace, "time"));
   int64 time;
   EXPECT_TRUE(base::StringToInt64(time_str, &time));
   int64 now = static_cast<int64>(base::Time::Now().ToDoubleT());
   EXPECT_LE(start_time, time);
   EXPECT_GE(now, time);
 
   scoped_refptr<RsaKeyPair> key_pair = RsaKeyPair::FromString(kTestRsaKeyPair);
@@ skipping 23 matching lines @@
 
   XmlElement* support_id_lifetime = new XmlElement(
       QName(kChromotingXmlNamespace, "support-id-lifetime"));
   support_id_lifetime->AddText(kSupportIdLifetime);
   result->AddElement(support_id_lifetime);
 
   int consumed = 0;
   ObserverListBase<SignalStrategy::Listener>::Iterator it(
       signal_strategy_listeners_);
   SignalStrategy::Listener* listener;
-  while ((listener = it.GetNext()) != NULL) {
+  while ((listener = it.GetNext()) != nullptr) {
     if (listener->OnSignalStrategyIncomingStanza(response.get()))
       consumed++;
   }
   EXPECT_EQ(1, consumed);
 
   base::RunLoop().RunUntilIdle();
 }
 
 }  // namespace remoting