Rotate screen in response to accelerator or device orientation sensors.

athena/system/public/system_ui.h

Index: athena/system/public/system_ui.h
diff --git a/athena/system/public/system_ui.h b/athena/system/public/system_ui.h
index c1e21d69c69cd8f8d72a70dced2ae795c57e2321..0032c5483cd176e678549f285b13e71ecc6c1f4b 100644
--- a/athena/system/public/system_ui.h
+++ b/athena/system/public/system_ui.h
@@ -6,13 +6,18 @@
 #define ATHENA_SYSTEM_PUBLIC_SYSTEM_UI_H_
 
 #include "athena/athena_export.h"
+#include "base/memory/ref_counted.h"
+
+namespace base {
+class TaskRunner;
+}
 
 namespace athena {
 
 class ATHENA_EXPORT SystemUI {
  public:
   // Creates and deletes the singleton object of the SystemUI implementation.
-  static SystemUI* Create();
+  static SystemUI* Create(scoped_refptr<base::TaskRunner> io_task_runner);
   static void Shutdown();
 
   virtual ~SystemUI() {}