Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

chrome/browser/chromeos/drive/download_handler.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/chromeos/drive/download_handler.h"
 
 #include <stddef.h>
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
@@ skipping 86 matching lines @@
   if (error != FILE_ERROR_OK ||
       !base::Move(downloaded_file, dest_path))
     return;
   *cache_file_path = dest_path;
 }
 
 // Used to implement CheckForFileExistence().
 void ContinueCheckingForFileExistence(
     const content::CheckForFileExistenceCallback& callback,
     FileError error,
-    scoped_ptr<ResourceEntry> entry) {
+    std::unique_ptr<ResourceEntry> entry) {
   callback.Run(error == FILE_ERROR_OK);
 }
 
 // Returns true if |download| is a Drive download created from data persisted
 // on the download history DB.
 bool IsPersistedDriveDownload(const base::FilePath& drive_tmp_download_path,
                               DownloadItem* download) {
   if (!drive_tmp_download_path.IsParent(download->GetTargetFilePath()))
     return false;
 
@@ skipping 304 matching lines @@
 
 DownloadManager* DownloadHandler::GetDownloadManager(void* manager_id) {
   if (manager_id == notifier_->GetManager())
     return notifier_->GetManager();
   if (notifier_incognito_ && manager_id == notifier_incognito_->GetManager())
     return notifier_incognito_->GetManager();
   return NULL;
 }
 
 }  // namespace drive