Bug 1544002 - nsNavHistoryResult::mRefreshParticipants should partici…

…pate in cycle collection. r=mak

It is an array of cycle collected objects.

Differential Revision: https://phabricator.services.mozilla.com/D27337

--HG--
extra : moz-landing-system : lando

toolkit/components/places/nsNavHistoryResult.cpp

@@ -3473,6 +3473,7 @@ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsNavHistoryResult)
   NS_IMPL_CYCLE_COLLECTION_UNLINK(mMobilePrefObservers)
   NS_IMPL_CYCLE_COLLECTION_UNLINK(mAllBookmarksObservers)
   NS_IMPL_CYCLE_COLLECTION_UNLINK(mHistoryObservers)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK(mRefreshParticipants)
 NS_IMPL_CYCLE_COLLECTION_UNLINK_END
 
 NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsNavHistoryResult)
@@ -3490,6 +3491,7 @@ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsNavHistoryResult)
   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMobilePrefObservers)
   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAllBookmarksObservers)
   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mHistoryObservers)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mRefreshParticipants)
 NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
 
 NS_IMPL_CYCLE_COLLECTING_ADDREF(nsNavHistoryResult)