| Index: Source/platform/Supplementable.h | 
| diff --git a/Source/platform/Supplementable.h b/Source/platform/Supplementable.h | 
| index 1f36b882bc660e7149cb6e98911b4c5cd62bc4eb..49c3fc9ae058ed86ad7a1d8f3312d17c0fa896ec 100644 | 
| --- a/Source/platform/Supplementable.h | 
| +++ b/Source/platform/Supplementable.h | 
| @@ -26,6 +26,7 @@ | 
| #ifndef Supplementable_h | 
| #define Supplementable_h | 
|  | 
| +#include "platform/PlatformExport.h" | 
| #include "platform/heap/Handle.h" | 
| #include "wtf/Assertions.h" | 
| #include "wtf/HashMap.h" | 
| @@ -115,7 +116,7 @@ template<> | 
| class SupplementTracing<true> : public GarbageCollectedMixin { }; | 
|  | 
| template<> | 
| -class GC_PLUGIN_IGNORE("crbug.com/476419") SupplementTracing<false> { | 
| +class GC_PLUGIN_IGNORE("crbug.com/476419") PLATFORM_EXPORT SupplementTracing<false> { | 
| public: | 
| virtual ~SupplementTracing() { } | 
| // FIXME: Oilpan: this trace() method is only provided to minimize | 
|  |