base: Rename EnvVarGetter to Environment.

base/xdg_util.h

 // 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_XDG_UTIL_H_
 #define BASE_XDG_UTIL_H_
 #pragma once
 
 // XDG refers to http://en.wikipedia.org/wiki/Freedesktop.org .
 // This file contains utilities found across free desktop
 // environments.
 
 class FilePath;
 
 namespace base {
 
-class EnvVarGetter;
+class Environment;
 
 // 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(EnvVarGetter* env, const char* env_name,
+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(EnvVarGetter* env, const char* dir_name,
+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(EnvVarGetter* env);
+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(EnvVarGetter* env);
+const char* GetDesktopEnvironmentName(Environment* env);
 
 }  // namespace base
 
 #endif  // BASE_XDG_UTIL_H_