gtk: Extract event functions into event_utils module.

chrome/browser/ui/gtk/infobars/confirm_infobar_gtk.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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/ui/gtk/infobars/confirm_infobar_gtk.h"
 
 #include <gtk/gtk.h>
 
 #include "base/utf_string_conversions.h"
+#include "chrome/browser/ui/gtk/event_utils.h"
 #include "chrome/browser/ui/gtk/gtk_chrome_link_button.h"
 #include "chrome/browser/ui/gtk/gtk_chrome_shrinkable_hbox.h"
 #include "chrome/browser/ui/gtk/gtk_util.h"
 #include "ui/base/gtk/gtk_signal_registrar.h"
 
 // ConfirmInfoBarDelegate ------------------------------------------------------
 
 InfoBar* ConfirmInfoBarDelegate::CreateInfoBar(InfoBarTabHelper* owner) {
   return new ConfirmInfoBarGtk(owner, this);
 }
@@ skipping 67 matching lines @@
     RemoveSelf();
 }
 
 void ConfirmInfoBarGtk::OnCancelButton(GtkWidget* widget) {
   if (delegate()->AsConfirmInfoBarDelegate()->Cancel())
     RemoveSelf();
 }
 
 void ConfirmInfoBarGtk::OnLinkClicked(GtkWidget* widget) {
   if (delegate()->AsConfirmInfoBarDelegate()->LinkClicked(
-        gtk_util::DispositionForCurrentButtonPressEvent()))
+        event_utils::DispositionForCurrentButtonPressEvent()))
     RemoveSelf();
 }