diff -p -up webkit-1.2.0/WebKit/gtk/webkit/webkitwebsettings.cpp.allowScriptsToCloseWindows webkit-1.2.0/WebKit/gtk/webkit/webkitwebsettings.cpp
--- webkit-1.2.0/WebKit/gtk/webkit/webkitwebsettings.cpp.allowScriptsToCloseWindows	2010-04-05 12:51:20.000000000 +0000
+++ webkit-1.2.0/WebKit/gtk/webkit/webkitwebsettings.cpp	2010-05-18 18:20:16.397666673 +0000
@@ -96,6 +96,7 @@ struct _WebKitWebSettingsPrivate {
     gboolean enable_spatial_navigation;
     gchar* user_agent;
     gboolean javascript_can_open_windows_automatically;
+    gboolean allow_scripts_to_close_windows;
     gboolean enable_offline_web_application_cache;
     WebKitEditingBehavior editing_behavior;
     gboolean enable_universal_access_from_file_uris;
@@ -145,6 +146,7 @@ enum {
     PROP_ENABLE_SPATIAL_NAVIGATION,
     PROP_USER_AGENT,
     PROP_JAVASCRIPT_CAN_OPEN_WINDOWS_AUTOMATICALLY,
+    PROP_ALLOW_SCRIPTS_TO_CLOSE_WINDOWS,
     PROP_ENABLE_OFFLINE_WEB_APPLICATION_CACHE,
     PROP_EDITING_BEHAVIOR,
     PROP_ENABLE_UNIVERSAL_ACCESS_FROM_FILE_URIS,
@@ -623,6 +625,21 @@ static void webkit_web_settings_class_in
                                                          _("Whether JavaScript can open windows automatically"),
                                                          FALSE,
                                                          flags));
+
+    /**
+    * WebKitWebSettings: allow-scripts-to-close-windows
+    *
+    * Whether JavaScript can close windows automatically without user intervention.
+    *
+    */
+    g_object_class_install_property(gobject_class,
+                                    PROP_ALLOW_SCRIPTS_TO_CLOSE_WINDOWS,
+                                    g_param_spec_boolean("allow-scripts-to-close-windows",
+                                                         _("JavaScript can close windows automatically"),
+                                                         _("Whether JavaScript can close windows automatically"),
+                                                         FALSE,
+                                                         flags));
+
     /**
     * WebKitWebSettings:enable-offline-web-application-cache
     *
@@ -1023,6 +1040,9 @@ static void webkit_web_settings_set_prop
     case PROP_JAVASCRIPT_CAN_OPEN_WINDOWS_AUTOMATICALLY:
         priv->javascript_can_open_windows_automatically = g_value_get_boolean(value);
         break;
+    case PROP_ALLOW_SCRIPTS_TO_CLOSE_WINDOWS:
+        priv->allow_scripts_to_close_windows = g_value_get_boolean(value);
+        break;
     case PROP_ENABLE_OFFLINE_WEB_APPLICATION_CACHE:
         priv->enable_offline_web_application_cache = g_value_get_boolean(value);
         break;
@@ -1161,6 +1181,9 @@ static void webkit_web_settings_get_prop
     case PROP_JAVASCRIPT_CAN_OPEN_WINDOWS_AUTOMATICALLY:
         g_value_set_boolean(value, priv->javascript_can_open_windows_automatically);
         break;
+    case PROP_ALLOW_SCRIPTS_TO_CLOSE_WINDOWS:
+        g_value_set_boolean(value, priv->allow_scripts_to_close_windows);
+        break;
     case PROP_ENABLE_OFFLINE_WEB_APPLICATION_CACHE:
         g_value_set_boolean(value, priv->enable_offline_web_application_cache);
         break;
diff -p -up webkit-1.2.0/WebKit/gtk/webkit/webkitwebview.cpp.allowScriptsToCloseWindows webkit-1.2.0/WebKit/gtk/webkit/webkitwebview.cpp
--- webkit-1.2.0/WebKit/gtk/webkit/webkitwebview.cpp.allowScriptsToCloseWindows	2010-04-05 12:51:20.000000000 +0000
+++ webkit-1.2.0/WebKit/gtk/webkit/webkitwebview.cpp	2010-05-18 18:24:29.157666357 +0000
@@ -2677,7 +2677,7 @@ static void webkit_web_view_update_setti
     gboolean autoLoadImages, autoShrinkImages, printBackgrounds,
         enableScripts, enablePlugins, enableDeveloperExtras, resizableTextAreas,
         enablePrivateBrowsing, enableCaretBrowsing, enableHTML5Database, enableHTML5LocalStorage,
-        enableXSSAuditor, enableSpatialNavigation, javascriptCanOpenWindows, enableOfflineWebAppCache,
+        enableXSSAuditor, enableSpatialNavigation, javascriptCanOpenWindows, allowScriptsToCloseWindows, enableOfflineWebAppCache,
         enableUniversalAccessFromFileURI, enableFileAccessFromFileURI,
         enableDOMPaste, tabKeyCyclesThroughElements,
         enableSiteSpecificQuirks, usePageCache, enableJavaApplet;
@@ -2707,6 +2707,7 @@ static void webkit_web_view_update_setti
                  "enable-xss-auditor", &enableXSSAuditor,
                  "enable-spatial-navigation", &enableSpatialNavigation,
                  "javascript-can-open-windows-automatically", &javascriptCanOpenWindows,
+                 "allow-scripts-to-close-windows", &allowScriptsToCloseWindows,
                  "enable-offline-web-application-cache", &enableOfflineWebAppCache,
                  "editing-behavior", &editingBehavior,
                  "enable-universal-access-from-file-uris", &enableUniversalAccessFromFileURI,
@@ -2742,6 +2743,7 @@ static void webkit_web_view_update_setti
     settings->setXSSAuditorEnabled(enableXSSAuditor);
     settings->setSpatialNavigationEnabled(enableSpatialNavigation);
     settings->setJavaScriptCanOpenWindowsAutomatically(javascriptCanOpenWindows);
+    settings->setAllowScriptsToCloseWindows(allowScriptsToCloseWindows);
     settings->setOfflineWebApplicationCacheEnabled(enableOfflineWebAppCache);
     settings->setEditingBehavior(core(editingBehavior));
     settings->setAllowUniversalAccessFromFileURLs(enableUniversalAccessFromFileURI);
@@ -2839,6 +2841,8 @@ static void webkit_web_view_settings_not
         settings->setSpatialNavigationEnabled(g_value_get_boolean(&value));
     else if (name == g_intern_string("javascript-can-open-windows-automatically"))
         settings->setJavaScriptCanOpenWindowsAutomatically(g_value_get_boolean(&value));
+    else if (name == g_intern_string("allow-scripts-to-close-windows"))
+        settings->setAllowScriptsToCloseWindows(g_value_get_boolean(&value));
     else if (name == g_intern_string("enable-offline-web-application-cache"))
         settings->setOfflineWebApplicationCacheEnabled(g_value_get_boolean(&value));
     else if (name == g_intern_string("editing-behavior"))