Chromium Code Reviews| Index: test/cctest/trace-extension.h | 
| diff --git a/test/cctest/trace-extension.h b/test/cctest/trace-extension.h | 
| index 919eda5bb50d046e5662193a64213a365e1922a2..186cc6e7419246e0ecacf39d89b75dc199636c07 100644 | 
| --- a/test/cctest/trace-extension.h | 
| +++ b/test/cctest/trace-extension.h | 
| @@ -33,6 +33,8 @@ | 
| namespace v8 { | 
| namespace internal { | 
| +struct TickSample; | 
| + | 
| class TraceExtension : public v8::Extension { | 
| public: | 
| TraceExtension() : v8::Extension("v8/trace", kSource) { } |