Client Side Speed Index

third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp

Index: third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp
diff --git a/third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp b/third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp
index 4d289e444e3d454b9ed807e18a2bcfaf0d75462b..c34125eae7d7c52310ffc121faf7d638c9b77410 100644
--- a/third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp
+++ b/third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp
@@ -68,6 +68,7 @@
 #include "core/page/Page.h"
 #include "core/page/WindowFeatures.h"
 #include "core/page/scrolling/ScrollingCoordinator.h"
+#include "core/paint/PaintTiming.h"
 #include "platform/EventDispatchForbiddenScope.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebFrameScheduler.h"
@@ -1383,6 +1384,10 @@ void LocalDOMWindow::dispatchLoadEvent()
         RefPtrWillBeRawPtr<DocumentLoader> documentLoader = frame()->loader().documentLoader();
         DocumentLoadTiming& timing = documentLoader->timing();
         timing.markLoadEventStart();
+        if (frame()->isMainFrame()) {
+            PaintTiming paintTiming = PaintTiming::from(*frame()->document());
+            paintTiming.speedIndex(timing.navigationStart());
+        }
         dispatchEvent(loadEvent, document());
         timing.markLoadEventEnd();
     } else {