Convert //components/proximity_auth from scoped_ptr to std::unique_ptr

components/proximity_auth/cryptauth/mock_cryptauth_client.cc

 // Copyright 2015 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 "components/proximity_auth/cryptauth/mock_cryptauth_client.h"
 
 #include <utility>
 
 #include "base/callback.h"
 
 namespace proximity_auth {
 
 MockCryptAuthClient::MockCryptAuthClient() {
 }
 
 MockCryptAuthClient::~MockCryptAuthClient() {
 }
 
 MockCryptAuthClientFactory::MockCryptAuthClientFactory(MockType mock_type)
     : mock_type_(mock_type) {
 }
 
 MockCryptAuthClientFactory::~MockCryptAuthClientFactory() {
 }
 
-scoped_ptr<CryptAuthClient> MockCryptAuthClientFactory::CreateInstance() {
-  scoped_ptr<MockCryptAuthClient> client;
+std::unique_ptr<CryptAuthClient> MockCryptAuthClientFactory::CreateInstance() {
+  std::unique_ptr<MockCryptAuthClient> client;
   if (mock_type_ == MockType::MAKE_STRICT_MOCKS)
     client.reset(new testing::StrictMock<MockCryptAuthClient>());
   else
     client.reset(new testing::NiceMock<MockCryptAuthClient>());
 
   FOR_EACH_OBSERVER(Observer, observer_list_,
                     OnCryptAuthClientCreated(client.get()));
   return std::move(client);
 }
 
 void MockCryptAuthClientFactory::AddObserver(Observer* observer) {
   observer_list_.AddObserver(observer);
 }
 
 void MockCryptAuthClientFactory::RemoveObserver(Observer* observer) {
   observer_list_.RemoveObserver(observer);
 }
 
 }  // namespace proximity_auth