Report page load timing information for child frames.

chrome/browser/page_load_metrics/metrics_web_contents_observer.cc

Index: chrome/browser/page_load_metrics/metrics_web_contents_observer.cc
diff --git a/chrome/browser/page_load_metrics/metrics_web_contents_observer.cc b/chrome/browser/page_load_metrics/metrics_web_contents_observer.cc
index 044495e8c15477c6feb9d26f3b8e58b564fdebe0..01e59277ac22c31d7af4f52d03b9c5a760d0ca4b 100644
--- a/chrome/browser/page_load_metrics/metrics_web_contents_observer.cc
+++ b/chrome/browser/page_load_metrics/metrics_web_contents_observer.cc
@@ -596,11 +596,7 @@ void MetricsWebContentsObserver::OnTimingUpdated(
     return;
 
   if (render_frame_host->GetParent() != nullptr) {
-    // Child frames may send PageLoadMetadata updates, but not PageLoadTiming
-    // updates.
-    if (!timing.IsEmpty())
-      RecordInternalError(ERR_TIMING_IPC_FROM_SUBFRAME);
-    committed_load_->UpdateChildFrameMetadata(metadata);
+    committed_load_->UpdateSubFrameTiming(render_frame_host, timing, metadata);
     return;
   }