Switch base::Value typemapping to be by value instead of by unique_ptr.

chrome/browser/importer/external_process_importer_client.cc

 // Copyright (c) 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 "chrome/browser/importer/external_process_importer_client.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
@@ skipping 62 matching lines @@
   localized_strings->SetString(
       base::IntToString(IDS_IMPORT_FROM_SAFARI),
       l10n_util::GetStringUTF8(IDS_IMPORT_FROM_SAFARI));
   localized_strings->SetString(
       base::IntToString(IDS_BOOKMARK_BAR_FOLDER_NAME),
       l10n_util::GetStringUTF8(IDS_BOOKMARK_BAR_FOLDER_NAME));
 
   // If the utility process hasn't started yet the message will queue until it
   // does.
   auto observer_ptr = binding_.CreateInterfacePtrAndBind();
-  profile_import_->StartImport(source_profile_, items_,
-                               std::move(localized_strings),
+  profile_import_->StartImport(source_profile_, items_, *localized_strings,
                                std::move(observer_ptr));
 }
 
 void ExternalProcessImporterClient::Cancel() {
   if (cancelled_)
     return;
 
   cancelled_ = true;
   profile_import_->CancelImport();
   CloseMojoHandles();
@@ skipping 212 matching lines @@
 
   utility_process_host->Start();
   chrome::mojom::ProfileImportPtr profile_import;
   BindInterface(utility_process_host, std::move(request));
 }
 
 void ExternalProcessImporterClient::CloseMojoHandles() {
   profile_import_.reset();
   binding_.Close();
 }