1 files changed, 10 insertions, 4 deletions
diff --git a/chromium/third_party/blink/renderer/core/paint/paint_timing.cc b/chromium/third_party/blink/renderer/core/paint/paint_timing.cc
index 6e7140526b6..f3ea3825c3b 100644
--- a/chromium/third_party/blink/renderer/core/paint/paint_timing.cc
+++ b/chromium/third_party/blink/renderer/core/paint/paint_timing.cc
@@ -21,6 +21,7 @@
 #include "third_party/blink/renderer/core/timing/dom_window_performance.h"
 #include "third_party/blink/renderer/core/timing/window_performance.h"
 #include "third_party/blink/renderer/platform/instrumentation/histogram.h"
+#include "third_party/blink/renderer/platform/instrumentation/resource_coordinator/document_resource_coordinator.h"
 #include "third_party/blink/renderer/platform/instrumentation/tracing/trace_event.h"
 #include "third_party/blink/renderer/platform/scheduler/public/frame_scheduler.h"
 #include "third_party/blink/renderer/platform/wtf/cross_thread_functional.h"
@@ -168,12 +169,11 @@ void PaintTiming::SetFirstContentfulPaint(base::TimeTicks stamp) {
 
 void PaintTiming::RegisterNotifySwapTime(PaintEvent event) {
   RegisterNotifySwapTime(
-      event, CrossThreadBindOnce(&PaintTiming::ReportSwapTime,
-                                 WrapCrossThreadWeakPersistent(this), event));
+      CrossThreadBindOnce(&PaintTiming::ReportSwapTime,
+                          WrapCrossThreadWeakPersistent(this), event));
 }
 
-void PaintTiming::RegisterNotifySwapTime(PaintEvent event,
-                                         ReportTimeCallback callback) {
+void PaintTiming::RegisterNotifySwapTime(ReportTimeCallback callback) {
   // ReportSwapTime will queue a swap-promise, the callback is called when the
   // compositor submission of the current render frame completes or fails to
   // happen.
@@ -245,6 +245,12 @@ void PaintTiming::SetFirstContentfulPaintSwap(base::TimeTicks stamp) {
   if (interactive_detector) {
     interactive_detector->OnFirstContentfulPaint(first_contentful_paint_swap_);
   }
+  auto* coordinator = GetSupplementable()->GetResourceCoordinator();
+  if (coordinator && GetFrame() && GetFrame()->IsMainFrame()) {
+    PerformanceTiming* timing = performance->timing();
+    base::TimeDelta fcp = stamp - timing->NavigationStartAsMonotonicTime();
+    coordinator->OnFirstContentfulPaint(fcp);
+  }
 }
 
 void PaintTiming::SetFirstImagePaintSwap(base::TimeTicks stamp) {