Re-write many calls to WrapUnique() with MakeUnique()

ios/chrome/browser/sync/ios_chrome_profile_sync_service_factory.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 "ios/chrome/browser/sync/ios_chrome_profile_sync_service_factory.h"
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "base/memory/singleton.h"
@@ skipping 110 matching lines @@
   // Always create the GCMProfileService instance such that we can listen to
   // the profile notifications and purge the GCM store when the profile is
   // being signed out.
   IOSChromeGCMProfileServiceFactory::GetForBrowserState(browser_state);
 
   // TODO(crbug.com/171406): Change AboutSigninInternalsFactory to load on
   // startup once bug has been fixed.
   ios::AboutSigninInternalsFactory::GetForBrowserState(browser_state);
 
   ProfileSyncService::InitParams init_params;
-  init_params.signin_wrapper =
-      base::WrapUnique(new SigninManagerWrapper(signin));
+  init_params.signin_wrapper = base::MakeUnique<SigninManagerWrapper>(signin);
   init_params.oauth2_token_service =
       OAuth2TokenServiceFactory::GetForBrowserState(browser_state);
   init_params.start_behavior = ProfileSyncService::MANUAL_START;
   init_params.sync_client =
-      base::WrapUnique(new IOSChromeSyncClient(browser_state));
+      base::MakeUnique<IOSChromeSyncClient>(browser_state);
   init_params.network_time_update_callback = base::Bind(&UpdateNetworkTime);
   init_params.base_directory = browser_state->GetStatePath();
   init_params.url_request_context = browser_state->GetRequestContext();
   init_params.debug_identifier = browser_state->GetDebugName();
   init_params.channel = ::GetChannel();
   init_params.db_thread =
       web::WebThread::GetTaskRunnerForThread(web::WebThread::DB);
   init_params.file_thread =
       web::WebThread::GetTaskRunnerForThread(web::WebThread::FILE);
   init_params.blocking_pool = web::WebThread::GetBlockingPool();
 
-  auto pss = base::WrapUnique(new ProfileSyncService(std::move(init_params)));
+  auto pss = base::MakeUnique<ProfileSyncService>(std::move(init_params));
 
   // Will also initialize the sync client.
   pss->Initialize();
   return std::move(pss);
 }