Revert r115276, it broke PanelDownloadTest.Download in interactive_ui_tests

chrome/browser/chromeos/boot_times_loader.cc

Index: chrome/browser/chromeos/boot_times_loader.cc
diff --git a/chrome/browser/chromeos/boot_times_loader.cc b/chrome/browser/chromeos/boot_times_loader.cc
index 7137f71cc12d1eda68209596c5f5a67f5be01d91..21f163224e94ff37ff9d2227249c5172c9ef0d69 100644
--- a/chrome/browser/chromeos/boot_times_loader.cc
+++ b/chrome/browser/chromeos/boot_times_loader.cc
@@ -475,7 +475,7 @@ void BootTimesLoader::Observe(
     case content::NOTIFICATION_TAB_CONTENTS_DESTROYED: {
       TabContents* tab_contents = content::Source<TabContents>(source).ptr();
       RenderWidgetHost* render_widget_host =
-          GetRenderWidgetHost(&tab_contents->GetController());
+          GetRenderWidgetHost(&tab_contents->controller());
       render_widget_hosts_loading_.erase(render_widget_host);
       break;
     }