Observing DocumentTiming and sending data to RenderFrameImpl

public/web/WebFrameClient.h

Index: public/web/WebFrameClient.h
diff --git a/public/web/WebFrameClient.h b/public/web/WebFrameClient.h
index 7315757934077015dbc723a1cd926063178f1358..1e5cb018500f456e721ed2c7558b9d880d51f00a 100644
--- a/public/web/WebFrameClient.h
+++ b/public/web/WebFrameClient.h
@@ -454,6 +454,9 @@ public:
     // A PingLoader was created, and a request dispatched to a URL.
     virtual void didDispatchPingLoader(WebLocalFrame*, const WebURL&) { }
 
+    // A Performance Event (e.g. First Paint) occurred

[Bryan McQuade, 2015/08/14 15:14:16]

maybe just add 'timing' to the sentence : 'A performance timing event (e.g.
first paint) occurred.'

+    virtual void didChangePerformanceTiming() { }
+
     // The loaders in this frame have been stopped.
     virtual void didAbortLoading(WebLocalFrame*) { }