Linux: Detect Unity as a desktop environment.

base/nix/xdg_util.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 BASE_NIX_XDG_UTIL_H_
 #define BASE_NIX_XDG_UTIL_H_
 
 // XDG refers to http://en.wikipedia.org/wiki/Freedesktop.org .
 // This file contains utilities found across free desktop environments.
 //
@@ skipping 35 matching lines @@
 BASE_EXPORT FilePath GetXDGUserDirectory(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_UNITY,
   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.
 BASE_EXPORT DesktopEnvironment GetDesktopEnvironment(Environment* env);
 
 // Return a string representation of the given desktop environment.
 // May return NULL in the case of DESKTOP_ENVIRONMENT_OTHER.
 BASE_EXPORT const char* GetDesktopEnvironmentName(DesktopEnvironment env);
 // Convenience wrapper that calls GetDesktopEnvironment() first.
 BASE_EXPORT const char* GetDesktopEnvironmentName(Environment* env);
 
 }  // namespace nix
 }  // namespace base
 
 #endif  // BASE_NIX_XDG_UTIL_H_