Replace SmartPointer<T> with unique_ptr<T>

test/unittests/compiler/instruction-sequence-unittest.cc

 // Copyright 2014 the V8 project 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 "src/base/utils/random-number-generator.h"
 #include "src/compiler/pipeline.h"
 #include "test/unittests/compiler/instruction-sequence-unittest.h"
 #include "test/unittests/test-utils.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
@@ skipping 37 matching lines @@
       num_double_registers_(kDefaultNRegs),
       instruction_blocks_(zone()),
       current_block_(nullptr),
       block_returns_(false) {
   InitializeRegisterNames();
 }
 
 
 void InstructionSequenceTest::SetNumRegs(int num_general_registers,
                                          int num_double_registers) {
-  CHECK(config_.is_empty());
+  CHECK(!config_);
   CHECK(instructions_.empty());
   CHECK(instruction_blocks_.empty());
   num_general_registers_ = num_general_registers;
   num_double_registers_ = num_double_registers;
 }
 
 
 RegisterConfiguration* InstructionSequenceTest::config() {
-  if (config_.is_empty()) {
-    config_.Reset(new RegisterConfiguration(
+  if (!config_) {
+    config_.reset(new RegisterConfiguration(
         num_general_registers_, num_double_registers_, num_general_registers_,
         num_double_registers_, allocatable_codes, allocatable_double_codes,
         kSimpleFPAliasing ? RegisterConfiguration::OVERLAP
                           : RegisterConfiguration::COMBINE,
         general_register_names_,
         double_register_names_,  // float register names
         double_register_names_,
         double_register_names_));  // SIMD 128 register names
   }
   return config_.get();
@@ skipping 426 matching lines @@
 
 
 Instruction* InstructionSequenceTest::AddInstruction(Instruction* instruction) {
   sequence()->AddInstruction(instruction);
   return instruction;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8