GTK: Turn on the GTK+ integration by default.

chrome/browser/gtk/options/advanced_contents_gtk.cc

 // 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.
 
 #include "chrome/browser/gtk/options/advanced_contents_gtk.h"
 
 #include <sys/types.h>
 #include <sys/wait.h>
 
 #include "app/gtk_signal.h"
@@ skipping 402 matching lines @@
     case base::DESKTOP_ENVIRONMENT_KDE3:
       command.argv = kKDE3ProxyConfigCommand;
       found_command = SearchPATH(&command, 1, NULL);
       break;
 
     case base::DESKTOP_ENVIRONMENT_KDE4:
       command.argv = kKDE4ProxyConfigCommand;
       found_command = SearchPATH(&command, 1, NULL);
       break;
 
+    case base::DESKTOP_ENVIRONMENT_XFCE:
     case base::DESKTOP_ENVIRONMENT_OTHER:
       break;
   }
 
   if (found_command) {
     StartProxyConfigUtil(command);
   } else {
     const char* name = base::GetDesktopEnvironmentName(env_getter.get());
     if (name)
       LOG(ERROR) << "Could not find " << name << " network settings in $PATH";
@@ skipping 779 matching lines @@
       l10n_util::GetStringUTF8(IDS_OPTIONS_ADVANCED_SECTION_TITLE_CONTENT),
       web_content_section_->get_page_widget(), false);
 
   security_section_.reset(new SecuritySection(profile_));
   options_builder.AddOptionGroup(
       l10n_util::GetStringUTF8(IDS_OPTIONS_ADVANCED_SECTION_TITLE_SECURITY),
       security_section_->get_page_widget(), false);
 
   page_ = options_builder.get_page_widget();
 }