Make gtk url picker and edit keyword view modal.

chrome/browser/gtk/options/url_picker_dialog_gtk.cc

 // Copyright (c) 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 "app/l10n_util.h"
 #include "base/message_loop.h"
 #include "chrome/browser/gtk/options/url_picker_dialog_gtk.h"
 #include "chrome/browser/net/url_fixer_upper.h"
@@ skipping 10 matching lines @@
 }
 
 UrlPickerDialogGtk::UrlPickerDialogGtk(UrlPickerCallback* callback,
                                        Profile* profile,
                                        GtkWindow* parent)
     : profile_(profile),
       callback_(callback) {
   dialog_ = gtk_dialog_new_with_buttons(
       l10n_util::GetStringUTF8(IDS_ASI_ADD_TITLE).c_str(),
       parent,
-      // Non-modal.
-      GTK_DIALOG_NO_SEPARATOR,
+      static_cast<GtkDialogFlags>(GTK_DIALOG_MODAL | GTK_DIALOG_NO_SEPARATOR),
       GTK_STOCK_CANCEL,
       GTK_RESPONSE_CANCEL,
       NULL);
 
   add_button_ = gtk_dialog_add_button(GTK_DIALOG(dialog_),
                                       GTK_STOCK_ADD, GTK_RESPONSE_OK);
   gtk_dialog_set_default_response(GTK_DIALOG(dialog_), GTK_RESPONSE_OK);
 
 
   GtkWidget* url_hbox = gtk_hbox_new(FALSE, gtk_util::kLabelSpacing);
@@ skipping 49 matching lines @@
     window->AddURL();
   }
   gtk_widget_destroy(window->dialog_);
 }
 
 // static
 void UrlPickerDialogGtk::OnWindowDestroy(GtkWidget* widget,
                                          UrlPickerDialogGtk* window) {
   MessageLoop::current()->DeleteSoon(FROM_HERE, window);
 }