Remove base::Value::CreateNullValue

chrome/browser/safe_browsing/incident_reporting/preference_validation_delegate_unittest.cc

Index: chrome/browser/safe_browsing/incident_reporting/preference_validation_delegate_unittest.cc
diff --git a/chrome/browser/safe_browsing/incident_reporting/preference_validation_delegate_unittest.cc b/chrome/browser/safe_browsing/incident_reporting/preference_validation_delegate_unittest.cc
index 0783205eb22fce5270b5b9a8c769b085bbda4385..0aa2d8236a6d9b865eccae70cca3920d33e9bef0 100644
--- a/chrome/browser/safe_browsing/incident_reporting/preference_validation_delegate_unittest.cc
+++ b/chrome/browser/safe_browsing/incident_reporting/preference_validation_delegate_unittest.cc
@@ -13,6 +13,7 @@
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
+#include "base/memory/ptr_util.h"
 #include "base/values.h"
 #include "chrome/browser/safe_browsing/incident_reporting/incident.h"
 #include "chrome/browser/safe_browsing/incident_reporting/mock_incident_receiver.h"
@@ -129,7 +130,7 @@ class PreferenceValidationDelegateValues
     using base::Value;
     switch (value_type) {
       case Value::Type::NONE:
-        return Value::CreateNullValue();
+        return base::MakeUnique<base::Value>();
       case Value::Type::BOOLEAN:
         return std::unique_ptr<Value>(new base::Value(false));
       case Value::Type::INTEGER:
@@ -212,7 +213,7 @@ class PreferenceValidationDelegateNoIncident
 
 TEST_P(PreferenceValidationDelegateNoIncident, Atomic) {
   instance_->OnAtomicPreferenceValidation(
-      kPrefPath, base::Value::CreateNullValue(), value_state_,
+      kPrefPath, base::MakeUnique<base::Value>(), value_state_,
       external_validation_value_state_, false /* is_personal */);
   EXPECT_EQ(0U, incidents_.size());
 }
@@ -255,7 +256,7 @@ class PreferenceValidationDelegateWithIncident
 
 TEST_P(PreferenceValidationDelegateWithIncident, Atomic) {
   instance_->OnAtomicPreferenceValidation(
-      kPrefPath, base::Value::CreateNullValue(), value_state_,
+      kPrefPath, base::MakeUnique<base::Value>(), value_state_,
       external_validation_value_state_, is_personal_);
   ASSERT_EQ(1U, incidents_.size());
   std::unique_ptr<safe_browsing::ClientIncidentReport_IncidentData> incident(