| Index: trace_event/trace_log.h | 
| diff --git a/trace_event/trace_log.h b/trace_event/trace_log.h | 
| index 727e1cd82544c4aa6e6859c3eb75551329f1960a..29f6aa026dbfe53db2ceba5e65744a9ef4636867 100644 | 
| --- a/trace_event/trace_log.h | 
| +++ b/trace_event/trace_log.h | 
| @@ -25,11 +25,10 @@ | 
| TRACE_EVENT_PHASE_INSTANT, name, reinterpret_cast<const void*>(id), \ | 
| extra) | 
|  | 
| -template <typename Type> | 
| -struct DefaultSingletonTraits; | 
| - | 
| namespace base { | 
|  | 
| +template <typename Type> | 
| +struct DefaultSingletonTraits; | 
| class RefCountedString; | 
|  | 
| namespace trace_event { | 
|  |