Replace SmartArrayPointer<T> with unique_ptr<T[]>

test/cctest/compiler/test-operator.cc

Index: test/cctest/compiler/test-operator.cc
diff --git a/test/cctest/compiler/test-operator.cc b/test/cctest/compiler/test-operator.cc
index eecf46a054159162754a37d7a86e3043e47f5dad..90814ba99dd3e6baea278f365026eb2e96232557 100644
--- a/test/cctest/compiler/test-operator.cc
+++ b/test/cctest/compiler/test-operator.cc
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <memory>
 #include <sstream>
 
 #include "src/compiler/operator.h"
@@ -67,11 +68,10 @@ TEST(TestOperator_Equals) {
   CHECK(!op2b.Equals(&op1b));
 }
 
-
-static v8::base::SmartArrayPointer<const char> OperatorToString(Operator* op) {
+static std::unique_ptr<char[]> OperatorToString(Operator* op) {
   std::ostringstream os;
   os << *op;
-  return v8::base::SmartArrayPointer<const char>(StrDup(os.str().c_str()));
+  return std::unique_ptr<char[]>(StrDup(os.str().c_str()));
 }