[Sync] Rewriting ".reset(new" pattern to use "= base::MakeUnique" instead.

components/sync/engine_impl/sync_encryption_handler_impl_unittest.cc

 // Copyright 2012 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/sync/engine_impl/sync_encryption_handler_impl.h"
 
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/base64.h"
 #include "base/json/json_string_value_serializer.h"
+#include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
 #include "base/tracked_objects.h"
 #include "components/sync/base/fake_encryptor.h"
 #include "components/sync/base/model_type_test_util.h"
 #include "components/sync/protocol/nigori_specifics.pb.h"
 #include "components/sync/protocol/sync.pb.h"
 #include "components/sync/syncable/entry.h"
 #include "components/sync/syncable/mutable_entry.h"
 #include "components/sync/syncable/read_node.h"
 #include "components/sync/syncable/read_transaction.h"
@@ skipping 65 matching lines @@
     test_user_share_.TearDown();
   }
 
  protected:
   void SetUpEncryption() {
     SetUpEncryptionWithKeyForBootstrapping(std::string());
   }
 
   void SetUpEncryptionWithKeyForBootstrapping(
       const std::string& key_for_bootstrapping) {
-    encryption_handler_.reset(new SyncEncryptionHandlerImpl(
+    encryption_handler_ = base::MakeUnique<SyncEncryptionHandlerImpl>(
         user_share(), &encryptor_, key_for_bootstrapping,
-        std::string() /* keystore key for bootstrapping */));
+        std::string() /* keystore key for bootstrapping */);
     encryption_handler_->AddObserver(&observer_);
   }
 
   void CreateRootForType(ModelType model_type) {
     syncable::Directory* directory = user_share()->directory.get();
 
     std::string tag_name = ModelTypeToRootTag(model_type);
 
     syncable::WriteTransaction wtrans(FROM_HERE, syncable::UNITTEST, directory);
     syncable::MutableEntry node(&wtrans, syncable::CREATE, model_type,
@@ skipping 2185 matching lines @@
   EXPECT_CALL(*observer(),
               OnBootstrapTokenUpdated(_, KEYSTORE_BOOTSTRAP_TOKEN));
   {
     ReadTransaction trans(FROM_HERE, user_share());
     encryption_handler()->SetKeystoreKeys(
         BuildEncryptionKeyProto(kRawKeystoreKey), trans.GetWrappedTrans());
   }
 }
 
 }  // namespace syncer