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

components/sync/driver/glue/sync_backend_host_core.cc

 // Copyright 2013 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/driver/glue/sync_backend_host_core.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
@@ skipping 637 matching lines @@
       SLOG(DFATAL) << "Could not delete the Sync Data folder.";
   }
 }
 
 void SyncBackendHostCore::StartSavingChanges() {
   // We may already be shut down.
   if (!sync_loop_)
     return;
   DCHECK(sync_loop_->task_runner()->BelongsToCurrentThread());
   DCHECK(!save_changes_timer_.get());
-  save_changes_timer_.reset(new base::RepeatingTimer());
+  save_changes_timer_ = base::MakeUnique<base::RepeatingTimer>();
   save_changes_timer_->Start(
       FROM_HERE, base::TimeDelta::FromSeconds(kSaveChangesIntervalSeconds),
       this, &SyncBackendHostCore::SaveChanges);
 }
 
 void SyncBackendHostCore::SaveChanges() {
   DCHECK(sync_loop_->task_runner()->BelongsToCurrentThread());
   sync_manager_->SaveChanges();
 }
 
@@ skipping 13 matching lines @@
 }
 
 void SyncBackendHostCore::ClearServerDataDone(
     const base::Closure& frontend_callback) {
   DCHECK(sync_loop_->task_runner()->BelongsToCurrentThread());
   host_.Call(FROM_HERE, &SyncBackendHostImpl::ClearServerDataDoneOnFrontendLoop,
              frontend_callback);
 }
 
 }  // namespace syncer