base: Rename EnvVarGetter to Environment.

app/gtk_util.cc

Index: app/gtk_util.cc
diff --git a/app/gtk_util.cc b/app/gtk_util.cc
index 63fa96a8eccdf306985e0e8a2e67b2b217c2921f..98e5d48186df94ed64c1cffef1ed87042f6e75fe 100644
--- a/app/gtk_util.cc
+++ b/app/gtk_util.cc
@@ -7,7 +7,7 @@
 #include <gtk/gtk.h>
 
 #include "app/l10n_util.h"
-#include "base/env_var.h"
+#include "base/environment.h"
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
 #include "base/xdg_util.h"
@@ -77,7 +77,7 @@ void GetWidgetSizeFromCharacters(
 void ApplyMessageDialogQuirks(GtkWidget* dialog) {
   if (gtk_window_get_modal(GTK_WINDOW(dialog))) {
     // Work around a KDE 3 window manager bug.
-    scoped_ptr<base::EnvVarGetter> env(base::EnvVarGetter::Create());
+    scoped_ptr<base::Environment> env(base::Environment::Create());
     if (base::DESKTOP_ENVIRONMENT_KDE3 == GetDesktopEnvironment(env.get()))
       gtk_window_set_skip_taskbar_hint(GTK_WINDOW(dialog), FALSE);
   }