Inconsistent use of [x] close panel icon. Code changes.

chrome/browser/ui/gtk/notifications/balloon_view_gtk.cc

Index: chrome/browser/ui/gtk/notifications/balloon_view_gtk.cc
diff --git a/chrome/browser/ui/gtk/notifications/balloon_view_gtk.cc b/chrome/browser/ui/gtk/notifications/balloon_view_gtk.cc
index e6bc666713a6375ed80deec24f481f36c5aff4d2..80da5f5c6e45b53bd112896cc888ff1648630991 100644
--- a/chrome/browser/ui/gtk/notifications/balloon_view_gtk.cc
+++ b/chrome/browser/ui/gtk/notifications/balloon_view_gtk.cc
@@ -268,14 +268,11 @@ void BalloonViewImpl::Show(Balloon* balloon) {
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
 
   // Create a button to dismiss the balloon and add it to the toolbar.
-  close_button_.reset(new CustomDrawButton(IDR_TAB_CLOSE,
-                                           IDR_TAB_CLOSE_P,
-                                           IDR_TAB_CLOSE_H,
-                                           IDR_TAB_CLOSE));
+  close_button_.reset(CustomDrawButton::CloseButtonBar(theme_service_));
   close_button_->SetBackground(
       SK_ColorBLACK,
-      rb.GetImageNamed(IDR_TAB_CLOSE).AsBitmap(),
-      rb.GetImageNamed(IDR_TAB_CLOSE_MASK).AsBitmap());
+      rb.GetImageNamed(IDR_CLOSE_1).AsBitmap(),
+      rb.GetImageNamed(IDR_CLOSE_1_MASK).AsBitmap());
   gtk_widget_set_tooltip_text(close_button_->widget(), dismiss_text.c_str());
   g_signal_connect(close_button_->widget(), "clicked",
                    G_CALLBACK(OnCloseButtonThunk), this);