Revert r115276, it broke PanelDownloadTest.Download in interactive_ui_tests

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 475e0cfa3dc16a5b640519bbad4a2190c0428c41..4c588bf79b0289c701316dacd57e73078fde0b86 100644
--- a/chrome/browser/ui/gtk/notifications/balloon_view_gtk.cc
+++ b/chrome/browser/ui/gtk/notifications/balloon_view_gtk.cc
@@ -348,7 +348,7 @@ void BalloonViewImpl::Update() {
   DCHECK(html_contents_.get()) << "BalloonView::Update called before Show";
   if (!html_contents_->tab_contents())
     return;
-  html_contents_->tab_contents()->GetController().LoadURL(
+  html_contents_->tab_contents()->controller().LoadURL(
       balloon_->notification().content_url(), content::Referrer(),
       content::PAGE_TRANSITION_LINK, std::string());
 }