Just finalize incremental marking when marking is done in idle notification.

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index 3dec2b085465fbba376bcd85988439bbcd50db75..b7180b6b06233c1319b52b604135b9ac5e763b60 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -4393,7 +4393,7 @@ void Heap::TryFinalizeIdleIncrementalMarking(
        gc_idle_time_handler_.ShouldDoMarkCompact(
            idle_time_in_ms, size_of_objects,
            mark_compact_speed_in_bytes_per_ms))) {
-    IdleMarkCompact("idle notification: finalize incremental");
+    CollectAllGarbage(kNoGCFlags, "idle notification: finalize incremental");
   }
 }