Fix BASE_EXPORT on QueryNode

base/test/trace_event_analyzer.h

Index: base/test/trace_event_analyzer.h
diff --git a/base/test/trace_event_analyzer.h b/base/test/trace_event_analyzer.h
index 249b744f0783e8be4299a7468f652a81573f2be1..d28e6aac56f8fa9341643abe16452e269257965c 100644
--- a/base/test/trace_event_analyzer.h
+++ b/base/test/trace_event_analyzer.h
@@ -361,7 +361,7 @@ class BASE_EXPORT Query {
 
 // Implementation detail:
 // QueryNode allows Query to store a ref-counted query tree.
-class QueryNode : public base::RefCounted<QueryNode> {
+class BASE_EXPORT QueryNode : public base::RefCounted<QueryNode> {
  public:
   explicit QueryNode(const Query& query);
   const Query& query() const { return query_; }