first-paint and first-contentful paint

third_party/WebKit/Source/core/paint/PaintTiming.h

Index: third_party/WebKit/Source/core/paint/PaintTiming.h
diff --git a/third_party/WebKit/Source/core/paint/PaintTiming.h b/third_party/WebKit/Source/core/paint/PaintTiming.h
index 488a2a3b68c5134ae9d75721e8d26f1fdc33b356..fc09448c3bf6ab8ceeea73d682de42a7eef7a82d 100644
--- a/third_party/WebKit/Source/core/paint/PaintTiming.h
+++ b/third_party/WebKit/Source/core/paint/PaintTiming.h
@@ -7,6 +7,7 @@
 
 #include "core/dom/Document.h"
 #include "core/paint/FirstMeaningfulPaintDetector.h"
+#include "core/timing/PerformancePaintTiming.h"
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Noncopyable.h"
@@ -89,6 +90,9 @@ class CORE_EXPORT PaintTiming final
   // marked as part of marking first text/image paint, for example.
   void setFirstPaint(double stamp);
 
+  void addPaintTimingToPerformance(PerformancePaintTiming::PaintType,
+                                   double stamp) const;
+
   // setFirstContentfulPaint will also set first paint time if first paint
   // time has not yet been recorded.
   void setFirstContentfulPaint(double stamp);