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+// Copyright (c) 2010 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 BASE_NIX_XDG_UTIL_H_
+#define BASE_NIX_XDG_UTIL_H_
+#pragma once
+
+// XDG refers to http://en.wikipedia.org/wiki/Freedesktop.org .
+// This file contains utilities found across free desktop environments.
+//
+// TODO(brettw) this file should be in app/x11, but is currently used by
+// net. We should have a net API to allow the embedder to specify the behavior
+// that it uses XDG for, and then move this file.
+
+#ifdef nix
+#error asdf
+#endif
+
+class FilePath;
+
+namespace base {
+
+class Environment;
+
+namespace nix {
+
+// Utility function for getting XDG directories.
+// |env_name| is the name of an environment variable that we want to use to get
+// a directory path. |fallback_dir| is the directory relative to $HOME that we
+// use if |env_name| cannot be found or is empty. |fallback_dir| may be NULL.
+// Examples of |env_name| are XDG_CONFIG_HOME and XDG_DATA_HOME.
+FilePath GetXDGDirectory(Environment* env, const char* env_name,
+                         const char* fallback_dir);
+
+// Wrapper around xdg_user_dir_lookup() from src/base/third_party/xdg-user-dirs
+// This looks up "well known" user directories like the desktop and music
+// folder. Examples of |dir_name| are DESKTOP and MUSIC.
+FilePath GetXDGUserDirectory(Environment* env, const char* dir_name,
+                             const char* fallback_dir);
+
+enum DesktopEnvironment {
+  DESKTOP_ENVIRONMENT_OTHER,
+  DESKTOP_ENVIRONMENT_GNOME,
+  // KDE3 and KDE4 are sufficiently different that we count
+  // them as two different desktop environments here.
+  DESKTOP_ENVIRONMENT_KDE3,
+  DESKTOP_ENVIRONMENT_KDE4,
+  DESKTOP_ENVIRONMENT_XFCE,
+};
+
+// Return an entry from the DesktopEnvironment enum with a best guess
+// of which desktop environment we're using.  We use this to know when
+// to attempt to use preferences from the desktop environment --
+// proxy settings, password manager, etc.
+DesktopEnvironment GetDesktopEnvironment(Environment* env);
+
+// Return a string representation of the given desktop environment.
+// May return NULL in the case of DESKTOP_ENVIRONMENT_OTHER.
+const char* GetDesktopEnvironmentName(DesktopEnvironment env);
+// Convenience wrapper that calls GetDesktopEnvironment() first.
+const char* GetDesktopEnvironmentName(Environment* env);
+
+}  // namespace nix
+}  // namespace base
+
+#endif  // BASE_NIX_XDG_UTIL_H_