Change linux default hidden file save directory to XDG_DATA_HOME

content/browser/download/download_manager_impl_unittest.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 "content/browser/download/download_manager_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
@@ skipping 529 matching lines @@
   uint32_t local_id(5);  // Random value
   base::FilePath download_path(FILE_PATH_LITERAL("download/path"));
 
   EXPECT_FALSE(download_manager_->GetDownload(local_id));
 
   EXPECT_CALL(GetMockObserver(), OnDownloadCreated(download_manager_.get(), _))
       .WillOnce(Return());
   EXPECT_CALL(GetMockDownloadManagerDelegate(), GetNextId(_))
       .WillOnce(RunCallback<0>(local_id));
 
+#if !defined(OS_LINUX) || defined(OS_CHROMEOS)
   // Doing nothing will set the default download directory to null.
   EXPECT_CALL(GetMockDownloadManagerDelegate(), GetSaveDir(_, _, _, _));
+#endif
   EXPECT_CALL(GetMockDownloadManagerDelegate(),
               ApplicationClientIdForFileScanning())
       .WillRepeatedly(Return("client-id"));
   MockDownloadFile* mock_file = new MockDownloadFile;
   EXPECT_CALL(*mock_download_file_factory_.get(),
               MockCreateFile(Ref(*info->save_info.get()), stream.get()))
       .WillOnce(Return(mock_file));
 
   download_manager_->StartDownload(std::move(info), std::move(stream),
                                    DownloadUrlParameters::OnStartedCallback());
@@ skipping 86 matching lines @@
   EXPECT_CALL(GetMockDownloadItem(1), Remove()).Times(0);
 
   base::Callback<bool(const GURL&)> url_filter =
       GetSingleURLFilter(download_urls_[0]);
   int remove_count = download_manager_->RemoveDownloadsByURLAndTime(
       url_filter, base::Time(), base::Time::Max());
   EXPECT_EQ(remove_count, 1);
 }
 
 }  // namespace content