linux: unify all the dialog layout code for visual consistency.

chrome/browser/gtk/options/options_window_gtk.cc

 // Copyright (c) 2006-2009 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 <gtk/gtk.h>
 
 #include "chrome/browser/options_window.h"
 
 #include "app/l10n_util.h"
 #include "base/message_loop.h"
@@ skipping 62 matching lines @@
   dialog_ = gtk_dialog_new_with_buttons(
       l10n_util::GetStringFUTF8(IDS_OPTIONS_DIALOG_TITLE,
           WideToUTF16(l10n_util::GetString(IDS_PRODUCT_NAME))).c_str(),
       // Prefs window is shared between all browser windows.
       NULL,
       // Non-modal.
       GTK_DIALOG_NO_SEPARATOR,
       GTK_STOCK_CLOSE,
       GTK_RESPONSE_CLOSE,
       NULL);
+  gtk_box_set_spacing(GTK_BOX(GTK_DIALOG(dialog_)->vbox), 18);
 
   notebook_ = gtk_notebook_new();
 
   gtk_notebook_append_page(
       GTK_NOTEBOOK(notebook_),
       gtk_label_new("TODO general"),
       gtk_label_new(
           l10n_util::GetStringUTF8(IDS_OPTIONS_GENERAL_TAB_LABEL).c_str()));
 
   gtk_notebook_append_page(
@@ skipping 90 matching lines @@
                        OptionsGroup highlight_group,
                        Profile* profile) {
   DCHECK(profile);
   // If there's already an existing options window, activate it and switch to
   // the specified page.
   if (!instance_) {
     instance_ = new OptionsWindowGtk(profile);
   }
   instance_->ShowOptionsPage(page, highlight_group);
 }