Thread user gesture through page_load_metrics abort pipeline

chrome/browser/page_load_metrics/observers/core_page_load_metrics_observer.cc

Index: chrome/browser/page_load_metrics/observers/core_page_load_metrics_observer.cc
diff --git a/chrome/browser/page_load_metrics/observers/core_page_load_metrics_observer.cc b/chrome/browser/page_load_metrics/observers/core_page_load_metrics_observer.cc
index cc5c8d92380d1f58fa9c2d70d24b47ecb053dcc5..49b5d3afd57ebcde851edaa2ef1033b01a8e3202 100644
--- a/chrome/browser/page_load_metrics/observers/core_page_load_metrics_observer.cc
+++ b/chrome/browser/page_load_metrics/observers/core_page_load_metrics_observer.cc
@@ -171,6 +171,9 @@ const char kHistogramForegroundToFirstPaint[] =
 const char kRapporMetricsNameCoarseTiming[] =
     "PageLoad.CoarseTiming.NavigationToFirstContentfulPaint";
 
+const char kHistogramFirstContentfulPaintUserInitiated[] =
+    "PageLoad.PaintTiming.NavigationToFirstContentfulPaint.UserInitiated";
+
 }  // namespace internal
 
 CorePageLoadMetricsObserver::CorePageLoadMetricsObserver()
@@ -299,6 +302,11 @@ void CorePageLoadMetricsObserver::OnFirstContentfulPaint(
                           timing.first_contentful_paint.value());
     }
 
+    if (info.user_gesture) {
+      PAGE_LOAD_HISTOGRAM(internal::kHistogramFirstContentfulPaintUserInitiated,
+                          timing.first_contentful_paint.value());
+    }
+
     switch (GetPageLoadType(transition_)) {
       case LOAD_TYPE_RELOAD:
         PAGE_LOAD_HISTOGRAM(