Add missing traces for Supplement<> classes

third_party/WebKit/Source/modules/indexeddb/IndexedDBClient.h

Index: third_party/WebKit/Source/modules/indexeddb/IndexedDBClient.h
diff --git a/third_party/WebKit/Source/modules/indexeddb/IndexedDBClient.h b/third_party/WebKit/Source/modules/indexeddb/IndexedDBClient.h
index 3c65ee99fb418677ef61efa3186bf3d90d7ad957..ac1a739199ae4a83614d0096520cff3aef935a03 100644
--- a/third_party/WebKit/Source/modules/indexeddb/IndexedDBClient.h
+++ b/third_party/WebKit/Source/modules/indexeddb/IndexedDBClient.h
@@ -28,6 +28,8 @@
 #ifndef IndexedDBClient_h
 #define IndexedDBClient_h
 
+#include "core/frame/LocalFrame.h"
+#include "core/workers/WorkerClients.h"
 #include "modules/ModulesExport.h"
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
@@ -46,7 +48,7 @@ public:
     IndexedDBClient();
     virtual ~IndexedDBClient() {}
 
-    DEFINE_INLINE_VIRTUAL_TRACE() { }
+    DECLARE_VIRTUAL_TRACE();
 
     virtual bool allowIndexedDB(ExecutionContext*, const String& name) = 0;