replace NULL->nullptr in src/remoting.

remoting/host/heartbeat_sender_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/heartbeat_sender.h"
 
 #include <set>
 
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 83 matching lines @@
   MockSignalStrategy signal_strategy_;
   MockClosure mock_heartbeat_successful_callback_;
   MockClosure mock_unknown_host_id_error_callback_;
   std::set<SignalStrategy::Listener*> signal_strategy_listeners_;
   scoped_refptr<RsaKeyPair> key_pair_;
   scoped_ptr<HeartbeatSender> heartbeat_sender_;
 };
 
 // Call Start() followed by Stop(), and make sure a valid heartbeat is sent.
 TEST_F(HeartbeatSenderTest, DoSendStanza) {
-  XmlElement* sent_iq = NULL;
+  XmlElement* sent_iq = nullptr;
   EXPECT_CALL(signal_strategy_, GetLocalJid())
       .WillRepeatedly(Return(kTestJid));
   EXPECT_CALL(signal_strategy_, GetNextId())
       .WillOnce(Return(kStanzaId));
   EXPECT_CALL(signal_strategy_, SendStanzaPtr(NotNull()))
       .WillOnce(DoAll(SaveArg<0>(&sent_iq), Return(true)));
   EXPECT_CALL(signal_strategy_, GetState())
       .WillRepeatedly(Return(SignalStrategy::CONNECTED));
 
   heartbeat_sender_->OnSignalStrategyStateChange(SignalStrategy::CONNECTED);
   base::RunLoop().RunUntilIdle();
 
   scoped_ptr<XmlElement> stanza(sent_iq);
-  ASSERT_TRUE(stanza != NULL);
+  ASSERT_TRUE(stanza != nullptr);
   ValidateHeartbeatStanza(stanza.get(), "0", nullptr);
 
   heartbeat_sender_->OnSignalStrategyStateChange(SignalStrategy::DISCONNECTED);
   base::RunLoop().RunUntilIdle();
 }
 
 // Call Start() followed by Stop(), twice, and make sure two valid heartbeats
 // are sent, with the correct sequence IDs.
 TEST_F(HeartbeatSenderTest, DoSendStanzaTwice) {
-  XmlElement* sent_iq = NULL;
+  XmlElement* sent_iq = nullptr;
   EXPECT_CALL(signal_strategy_, GetLocalJid())
       .WillRepeatedly(Return(kTestJid));
   EXPECT_CALL(signal_strategy_, GetNextId())
       .WillOnce(Return(kStanzaId));
   EXPECT_CALL(signal_strategy_, SendStanzaPtr(NotNull()))
       .WillOnce(DoAll(SaveArg<0>(&sent_iq), Return(true)));
   EXPECT_CALL(signal_strategy_, GetState())
       .WillRepeatedly(Return(SignalStrategy::CONNECTED));
 
   heartbeat_sender_->OnSignalStrategyStateChange(SignalStrategy::CONNECTED);
   base::RunLoop().RunUntilIdle();
 
   scoped_ptr<XmlElement> stanza(sent_iq);
-  ASSERT_TRUE(stanza != NULL);
+  ASSERT_TRUE(stanza != nullptr);
   ValidateHeartbeatStanza(stanza.get(), "0", nullptr);
 
   heartbeat_sender_->OnSignalStrategyStateChange(SignalStrategy::DISCONNECTED);
   base::RunLoop().RunUntilIdle();
 
   EXPECT_CALL(signal_strategy_, GetLocalJid())
       .WillRepeatedly(Return(kTestJid));
   EXPECT_CALL(signal_strategy_, GetNextId())
       .WillOnce(Return(kStanzaId + 1));
   EXPECT_CALL(signal_strategy_, SendStanzaPtr(NotNull()))
       .WillOnce(DoAll(SaveArg<0>(&sent_iq), Return(true)));
 
   heartbeat_sender_->OnSignalStrategyStateChange(SignalStrategy::CONNECTED);
   base::RunLoop().RunUntilIdle();
 
   scoped_ptr<XmlElement> stanza2(sent_iq);
   ValidateHeartbeatStanza(stanza2.get(), "1", nullptr);
 
   heartbeat_sender_->OnSignalStrategyStateChange(SignalStrategy::DISCONNECTED);
   base::RunLoop().RunUntilIdle();
 }
 
 // Call Start() followed by Stop(), make sure a valid Iq stanza is sent,
 // reply with an expected sequence ID, and make sure two valid heartbeats
 // are sent, with the correct sequence IDs.
 TEST_F(HeartbeatSenderTest, DoSendStanzaWithExpectedSequenceId) {
-  XmlElement* sent_iq = NULL;
+  XmlElement* sent_iq = nullptr;
   EXPECT_CALL(signal_strategy_, GetLocalJid())
       .WillRepeatedly(Return(kTestJid));
   EXPECT_CALL(signal_strategy_, GetNextId())
       .WillOnce(Return(kStanzaId));
   EXPECT_CALL(signal_strategy_, SendStanzaPtr(NotNull()))
       .WillOnce(DoAll(SaveArg<0>(&sent_iq), Return(true)));
   EXPECT_CALL(signal_strategy_, GetState())
       .WillRepeatedly(Return(SignalStrategy::CONNECTED));
 
   heartbeat_sender_->OnSignalStrategyStateChange(SignalStrategy::CONNECTED);
   base::RunLoop().RunUntilIdle();
 
   scoped_ptr<XmlElement> stanza(sent_iq);
-  ASSERT_TRUE(stanza != NULL);
+  ASSERT_TRUE(stanza != nullptr);
   ValidateHeartbeatStanza(stanza.get(), "0", nullptr);
 
-  XmlElement* sent_iq2 = NULL;
+  XmlElement* sent_iq2 = nullptr;
   EXPECT_CALL(signal_strategy_, GetLocalJid())
       .WillRepeatedly(Return(kTestJid));
   EXPECT_CALL(signal_strategy_, GetNextId())
       .WillOnce(Return(kStanzaId + 1));
   EXPECT_CALL(signal_strategy_, SendStanzaPtr(NotNull()))
       .WillOnce(DoAll(SaveArg<0>(&sent_iq2), Return(true)));
 
   scoped_ptr<XmlElement> response(new XmlElement(buzz::QN_IQ));
   response->AddAttr(QName(std::string(), "type"), "result");
   XmlElement* result =
       new XmlElement(QName(kChromotingXmlNamespace, "heartbeat-result"));
   response->AddElement(result);
   XmlElement* expected_sequence_id = new XmlElement(
       QName(kChromotingXmlNamespace, "expected-sequence-id"));
   result->AddElement(expected_sequence_id);
   const int kExpectedSequenceId = 456;
   expected_sequence_id->AddText(base::IntToString(kExpectedSequenceId));
-  heartbeat_sender_->ProcessResponse(false, NULL, response.get());
+  heartbeat_sender_->ProcessResponse(false, nullptr, response.get());
   base::RunLoop().RunUntilIdle();
 
   scoped_ptr<XmlElement> stanza2(sent_iq2);
-  ASSERT_TRUE(stanza2 != NULL);
+  ASSERT_TRUE(stanza2 != nullptr);
   ValidateHeartbeatStanza(stanza2.get(),
                           base::IntToString(kExpectedSequenceId).c_str(),
                           nullptr);
 
   heartbeat_sender_->OnSignalStrategyStateChange(SignalStrategy::DISCONNECTED);
   base::RunLoop().RunUntilIdle();
 }
 
 void HeartbeatSenderTest::ProcessResponseWithInterval(
     bool is_offline_heartbeat_response,
     int interval) {
   scoped_ptr<XmlElement> response(new XmlElement(buzz::QN_IQ));
   response->AddAttr(QName(std::string(), "type"), "result");
 
   XmlElement* result = new XmlElement(
       QName(kChromotingXmlNamespace, "heartbeat-result"));
   response->AddElement(result);
 
   XmlElement* set_interval = new XmlElement(
       QName(kChromotingXmlNamespace, "set-interval"));
   result->AddElement(set_interval);
 
   set_interval->AddText(base::IntToString(interval));
 
   heartbeat_sender_->ProcessResponse(
-      is_offline_heartbeat_response, NULL, response.get());
+      is_offline_heartbeat_response, nullptr, response.get());
 }
 
 // Verify that ProcessResponse parses set-interval result.
 TEST_F(HeartbeatSenderTest, ProcessResponseSetInterval) {
   EXPECT_CALL(mock_heartbeat_successful_callback_, Run());
 
   ProcessResponseWithInterval(false, kTestInterval);
 
   EXPECT_EQ(kTestInterval * 1000, heartbeat_sender_->interval_ms_);
 }
 
 // Make sure SetHostOfflineReason sends a correct stanza.
 TEST_F(HeartbeatSenderTest, DoSetHostOfflineReason) {
-  XmlElement* sent_iq = NULL;
+  XmlElement* sent_iq = nullptr;
   EXPECT_CALL(signal_strategy_, GetLocalJid())
       .WillRepeatedly(Return(kTestJid));
   EXPECT_CALL(signal_strategy_, GetNextId())
       .WillOnce(Return(kStanzaId));
   EXPECT_CALL(signal_strategy_, SendStanzaPtr(NotNull()))
       .WillOnce(DoAll(SaveArg<0>(&sent_iq), Return(true)));
   EXPECT_CALL(signal_strategy_, GetState())
       .WillOnce(Return(SignalStrategy::DISCONNECTED))
       .WillRepeatedly(Return(SignalStrategy::CONNECTED));
 
   heartbeat_sender_->SetHostOfflineReason(
       "test_error",
       base::Bind(base::DoNothing));
   heartbeat_sender_->OnSignalStrategyStateChange(SignalStrategy::CONNECTED);
   base::RunLoop().RunUntilIdle();
 
   scoped_ptr<XmlElement> stanza(sent_iq);
-  ASSERT_TRUE(stanza != NULL);
+  ASSERT_TRUE(stanza != nullptr);
   ValidateHeartbeatStanza(stanza.get(), "0", "test_error");
 
   heartbeat_sender_->OnSignalStrategyStateChange(SignalStrategy::DISCONNECTED);
   base::RunLoop().RunUntilIdle();
 }
 
 // Make sure SetHostOfflineReason triggers a callback when bot responds.
 TEST_F(HeartbeatSenderTest, ProcessHostOfflineResponses) {
   MockClosure mock_ack_callback;
 
@@ skipping 43 matching lines @@
 // Validate a heartbeat stanza.
 void HeartbeatSenderTest::ValidateHeartbeatStanza(
     XmlElement* stanza,
     const char* expected_sequence_id,
     const char* expected_host_offline_reason) {
   EXPECT_EQ(stanza->Attr(buzz::QName(std::string(), "to")),
             std::string(kTestBotJid));
   EXPECT_EQ(stanza->Attr(buzz::QName(std::string(), "type")), "set");
   XmlElement* heartbeat_stanza =
       stanza->FirstNamed(QName(kChromotingXmlNamespace, "heartbeat"));
-  ASSERT_TRUE(heartbeat_stanza != NULL);
+  ASSERT_TRUE(heartbeat_stanza != nullptr);
   EXPECT_EQ(expected_sequence_id, heartbeat_stanza->Attr(
       buzz::QName(kChromotingXmlNamespace, "sequence-id")));
   if (expected_host_offline_reason == nullptr) {
     EXPECT_FALSE(heartbeat_stanza->HasAttr(
         buzz::QName(kChromotingXmlNamespace, "host-offline-reason")));
   } else {
     EXPECT_EQ(expected_host_offline_reason, heartbeat_stanza->Attr(
         buzz::QName(kChromotingXmlNamespace, "host-offline-reason")));
   }
   EXPECT_EQ(std::string(kHostId),
             heartbeat_stanza->Attr(QName(kChromotingXmlNamespace, "hostid")));
 
   QName signature_tag(kChromotingXmlNamespace, "signature");
   XmlElement* signature = heartbeat_stanza->FirstNamed(signature_tag);
-  ASSERT_TRUE(signature != NULL);
-  EXPECT_TRUE(heartbeat_stanza->NextNamed(signature_tag) == NULL);
+  ASSERT_TRUE(signature != nullptr);
+  EXPECT_TRUE(heartbeat_stanza->NextNamed(signature_tag) == nullptr);
 
   scoped_refptr<RsaKeyPair> key_pair = RsaKeyPair::FromString(kTestRsaKeyPair);
   ASSERT_TRUE(key_pair.get());
   std::string expected_signature =
       key_pair->SignMessage(std::string(kTestJid) + ' ' + expected_sequence_id);
   EXPECT_EQ(expected_signature, signature->BodyText());
 }
 
 }  // namespace remoting