| Index: runtime/vm/pages.h
 | 
| diff --git a/runtime/vm/pages.h b/runtime/vm/pages.h
 | 
| index 13033af9de22d78706d0ce3109b1a833968105cb..ae32c87066ee3e5b20066535a881e646c73e4fef 100644
 | 
| --- a/runtime/vm/pages.h
 | 
| +++ b/runtime/vm/pages.h
 | 
| @@ -314,8 +314,10 @@ class PageSpace {
 | 
|      return collections_;
 | 
|    }
 | 
|  
 | 
| +#ifndef PRODUCT
 | 
|    void PrintToJSONObject(JSONObject* object) const;
 | 
|    void PrintHeapMapToJSONStream(Isolate* isolate, JSONStream* stream) const;
 | 
| +#endif  // PRODUCT
 | 
|  
 | 
|    void AllocateExternal(intptr_t size);
 | 
|    void FreeExternal(intptr_t size);
 | 
| 
 |