Linux: Detect Unity as a desktop environment.

chrome/browser/printing/printer_manager_dialog_linux.cc

Index: chrome/browser/printing/printer_manager_dialog_linux.cc
===================================================================
--- chrome/browser/printing/printer_manager_dialog_linux.cc	(revision 147124)
+++ chrome/browser/printing/printer_manager_dialog_linux.cc	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -33,14 +33,12 @@
     case base::nix::DESKTOP_ENVIRONMENT_GNOME:
     case base::nix::DESKTOP_ENVIRONMENT_KDE3:
     case base::nix::DESKTOP_ENVIRONMENT_KDE4:
+    case base::nix::DESKTOP_ENVIRONMENT_UNITY:
       command = kGNOMEPrinterConfigCommand;
       break;
     case base::nix::DESKTOP_ENVIRONMENT_XFCE:
     case base::nix::DESKTOP_ENVIRONMENT_OTHER:
       break;
-    default:
-      NOTREACHED();
-      break;
   }
 
   if (!command) {