Change linux default hidden file save directory to XDG_DATA_HOME

chrome/browser/shell_integration_linux.h

 // 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.
 
 #ifndef CHROME_BROWSER_SHELL_INTEGRATION_LINUX_H_
 #define CHROME_BROWSER_SHELL_INTEGRATION_LINUX_H_
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "chrome/browser/web_applications/web_app.h"
 #include "chrome/common/features.h"
 #include "url/gurl.h"
 
 namespace base {
 class CommandLine;
 class Environment;
 }
 
 namespace shell_integration_linux {
 
 // Get the path to write user-specific application data files to, as specified
 // in the XDG Base Directory Specification:
 // http://standards.freedesktop.org/basedir-spec/latest/
-// Called on the FILE thread.
 base::FilePath GetDataWriteLocation(base::Environment* env);
 
 // Get the list of paths to search for application data files, in order of
 // preference, as specified in the XDG Base Directory Specification:
 // http://standards.freedesktop.org/basedir-spec/latest/
 // Called on the FILE thread.
 std::vector<base::FilePath> GetDataSearchLocations(base::Environment* env);
 
 // Gets the name for use as the res_name of the window's WM_CLASS property.
 std::string GetProgramClassName();
@@ skipping 109 matching lines @@
 std::string GetProgramClassName(const base::CommandLine& command_line,
                                 const std::string& desktop_file_name);
 std::string GetProgramClassClass(const base::CommandLine& command_line,
                                  const std::string& desktop_file_name);
 
 }  // namespace internal
 
 }  // namespace shell_integration_linux
 
 #endif  // CHROME_BROWSER_SHELL_INTEGRATION_LINUX_H_