Allow window.close() in background pages.

chrome/browser/extensions/extension_host.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 "chrome/browser/extensions/extension_host.h"
 
 #include <list>
 
 #include "base/memory/singleton.h"
 #include "base/message_loop.h"
@@ skipping 463 matching lines @@
                                    bool success,
                                    const string16& user_input) {
   render_view_host()->JavaScriptDialogClosed(reply_msg,
                                              success,
                                              user_input);
 }
 
 void ExtensionHost::Close(RenderViewHost* render_view_host) {
   if (extension_host_type_ == ViewType::EXTENSION_POPUP ||
       extension_host_type_ == ViewType::EXTENSION_DIALOG ||
+      extension_host_type_ == ViewType::EXTENSION_BACKGROUND_PAGE ||
       extension_host_type_ == ViewType::EXTENSION_INFOBAR) {
     NotificationService::current()->Notify(
         chrome::NOTIFICATION_EXTENSION_HOST_VIEW_SHOULD_CLOSE,
         Source<Profile>(profile_),
         Details<ExtensionHost>(this));
   }
 }
 
 RendererPreferences ExtensionHost::GetRendererPrefs(
     content::BrowserContext* browser_context) const {
@@ skipping 16 matching lines @@
   WebPreferences webkit_prefs =
       RenderViewHostDelegateHelper::GetWebkitPrefs(profile,
                                                    false);  // is_web_ui
   // Extensions are trusted so we override any user preferences for disabling
   // javascript or images.
   webkit_prefs.loads_images_automatically = true;
   webkit_prefs.javascript_enabled = true;
 
   if (extension_host_type_ == ViewType::EXTENSION_POPUP ||
       extension_host_type_ == ViewType::EXTENSION_DIALOG ||
+      extension_host_type_ == ViewType::EXTENSION_BACKGROUND_PAGE ||
       extension_host_type_ == ViewType::EXTENSION_INFOBAR)
     webkit_prefs.allow_scripts_to_close_windows = true;
 
   // Disable anything that requires the GPU process for background pages.
   // See http://crbug.com/64512 and http://crbug.com/64841.
   if (extension_host_type_ == ViewType::EXTENSION_BACKGROUND_PAGE) {
     webkit_prefs.experimental_webgl_enabled = false;
     webkit_prefs.accelerated_compositing_enabled = false;
     webkit_prefs.accelerated_2d_canvas_enabled = false;
   }
@@ skipping 262 matching lines @@
   if (view_.get())
     view_->RenderViewCreated();
 
   if (extension_host_type_ == ViewType::EXTENSION_POPUP ||
       extension_host_type_ == ViewType::EXTENSION_INFOBAR) {
     render_view_host->Send(new ViewMsg_EnablePreferredSizeChangedMode(
         render_view_host->routing_id(),
         kPreferredSizeWidth | kPreferredSizeHeightThisIsSlow));
   }
 }