Add an experimental permissions API for extensions.

chrome/browser/ui/gtk/extensions/extension_install_dialog_gtk.cc

 // Copyright (c) 2011 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 "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_install_dialog.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 44 matching lines @@
                        const Extension* extension,
                        ExtensionInstallUI::Delegate *delegate,
                        const std::vector<string16>& permissions,
                        ExtensionInstallUI::PromptType type) {
   // Build the dialog.
   GtkWidget* dialog = gtk_dialog_new_with_buttons(
       l10n_util::GetStringUTF8(ExtensionInstallUI::kTitleIds[type]).c_str(),
       parent,
       GTK_DIALOG_MODAL,
       NULL);
-  GtkWidget* close_button = gtk_dialog_add_button(GTK_DIALOG(dialog),
-      GTK_STOCK_CANCEL, GTK_RESPONSE_CLOSE);
+  int cancel = ExtensionInstallUI::kAbortButtonIds[type];
+  GtkWidget* close_button = gtk_dialog_add_button(
+      GTK_DIALOG(dialog),
+      cancel > 0 ? l10n_util::GetStringUTF8(cancel).c_str(): GTK_STOCK_CANCEL,
+      GTK_RESPONSE_CLOSE);
   gtk_dialog_add_button(
       GTK_DIALOG(dialog),
       l10n_util::GetStringUTF8(ExtensionInstallUI::kButtonIds[type]).c_str(),
       GTK_RESPONSE_ACCEPT);
   gtk_dialog_set_has_separator(GTK_DIALOG(dialog), FALSE);
 
   // Create a two column layout.
   GtkWidget* content_area = GTK_DIALOG(dialog)->vbox;
   gtk_box_set_spacing(GTK_BOX(content_area), gtk_util::kContentAreaSpacing);
 
@@ skipping 108 matching lines @@
   BrowserWindowGtk* browser_window = static_cast<BrowserWindowGtk*>(
       browser->window());
   if (!browser_window) {
     delegate->InstallUIAbort(false);
     return;
   }
 
   ShowInstallDialog(
       browser_window->window(), icon, extension, delegate, permissions, type);
 }