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

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index ad136c0df9e2bca06c31e4cfe8c15a7b1dc17ce0..bf726784665b31f9773c4b0815108299332a24bc 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -7789,8 +7789,10 @@ void HeapProfiler::StopTrackingHeapObjects() {
 }
 
 
-SnapshotObjectId HeapProfiler::GetHeapStats(OutputStream* stream) {
-  return reinterpret_cast<i::HeapProfiler*>(this)->PushHeapObjectsStats(stream);
+SnapshotObjectId HeapProfiler::GetHeapStats(OutputStream* stream,
+                                            int64_t* timestamp_us) {
+  i::HeapProfiler* heap_profiler = reinterpret_cast<i::HeapProfiler*>(this);
+  return heap_profiler->PushHeapObjectsStats(stream, timestamp_us);
 }