Convert //extensions/{common,shell} from scoped_ptr to std::unique_ptr

extensions/common/cast/cast_cert_validator_unittest.cc

 // Copyright 2016 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 "extensions/common/cast/cast_cert_validator.h"
 
 #include "extensions/common/cast/cast_cert_validator_test_helpers.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace extensions {
@@ skipping 29 matching lines @@
 //        a valid signature generated by the device certificate.
 //
 void RunTest(TestResult expected_result,
              const std::string& expected_common_name,
              CastDeviceCertPolicy expected_policy,
              const std::string& certs_file_name,
              const base::Time::Exploded& time,
              const std::string& optional_signed_data_file_name) {
   auto certs = cast_test_helpers::ReadCertificateChainFromFile(certs_file_name);
 
-  scoped_ptr<CertVerificationContext> context;
+  std::unique_ptr<CertVerificationContext> context;
   CastDeviceCertPolicy policy;
   bool result = VerifyDeviceCert(certs, time, &context, &policy);
 
   if (expected_result == RESULT_FAIL) {
     ASSERT_FALSE(result);
     return;
   }
 
   ASSERT_TRUE(result);
   EXPECT_EQ(expected_policy, policy);
@@ skipping 353 matching lines @@
                                                CreateString(kEx2Message)));
 }
 
 }  // namespace
 
 }  // namespace cast_crypto
 
 }  // namespace api
 
 }  // namespace extensions