Return timestamp of the last recorded interval to the caller of HeapProfiler::GetHeapStats

src/heap-profiler.cc

Index: src/heap-profiler.cc
diff --git a/src/heap-profiler.cc b/src/heap-profiler.cc
index 20a416c32fa2929fdf9660f94b7806de70ea38c2..0fe50340e7f81a21f94804bc1bcdf48028a1c4e6 100644
--- a/src/heap-profiler.cc
+++ b/src/heap-profiler.cc
@@ -91,8 +91,9 @@ void HeapProfiler::StartHeapObjectsTracking(bool track_allocations) {
 }
 
 
-SnapshotObjectId HeapProfiler::PushHeapObjectsStats(OutputStream* stream) {
-  return ids_->PushHeapObjectsStats(stream);
+SnapshotObjectId HeapProfiler::PushHeapObjectsStats(OutputStream* stream,
+                                                    int64_t* timestamp_us) {
+  return ids_->PushHeapObjectsStats(stream, timestamp_us);
 }