Report page load timing information for child frames.

chrome/renderer/page_load_metrics/metrics_render_frame_observer.cc

Index: chrome/renderer/page_load_metrics/metrics_render_frame_observer.cc
diff --git a/chrome/renderer/page_load_metrics/metrics_render_frame_observer.cc b/chrome/renderer/page_load_metrics/metrics_render_frame_observer.cc
index 059653cbaf9ebc27469efbaf6d40328aa3d5bb12..679ba6e769e853845e3b4164b4b3f4a26a48cb5a 100644
--- a/chrome/renderer/page_load_metrics/metrics_render_frame_observer.cc
+++ b/chrome/renderer/page_load_metrics/metrics_render_frame_observer.cc
@@ -38,9 +38,7 @@ MetricsRenderFrameObserver::MetricsRenderFrameObserver(
 MetricsRenderFrameObserver::~MetricsRenderFrameObserver() {}
 
 void MetricsRenderFrameObserver::DidChangePerformanceTiming() {
-  // Only track timing metrics for main frames.
-  if (IsMainFrame())
-    SendMetrics();
+  SendMetrics();
 }
 
 void MetricsRenderFrameObserver::DidObserveLoadingBehavior(
@@ -72,14 +70,8 @@ void MetricsRenderFrameObserver::DidCommitProvisionalLoad(
   // non-null, we will send metrics for the current page at some later time, as
   // those metrics become available.
   if (ShouldSendMetrics()) {
-    PageLoadTiming timing;
-    if (IsMainFrame()) {
-      // Only populate PageLoadTiming for the main frame.
-      timing = GetTiming();
-      DCHECK(!timing.navigation_start.is_null());
-    }
-    page_timing_metrics_sender_.reset(
-        new PageTimingMetricsSender(this, routing_id(), CreateTimer(), timing));
+    page_timing_metrics_sender_.reset(new PageTimingMetricsSender(
+        this, routing_id(), CreateTimer(), GetTiming()));

[jkarlin, 2017/05/08 13:00:41]

page_timing_metrics_sender_ = base::MakeUnique<PageTimingMetricsSender>(this,
routing_id(), CreateTimer(), GetTiming());

[Bryan McQuade, 2017/05/08 15:26:32]

Done

   }
 }
 
@@ -185,8 +177,4 @@ void MetricsRenderFrameObserver::OnDestruct() {
   delete this;
 }
 
-bool MetricsRenderFrameObserver::IsMainFrame() const {
-  return render_frame()->IsMainFrame();
-}
-
 }  // namespace page_load_metrics