Navigation Timing Level 2

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

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 58 matching lines @@
 #include "core/inspector/InspectorTraceEvents.h"
 #include "core/loader/DocumentLoader.h"
 #include "core/loader/FrameLoaderClient.h"
 #include "core/loader/SinkDocument.h"
 #include "core/loader/appcache/ApplicationCache.h"
 #include "core/page/ChromeClient.h"
 #include "core/page/CreateWindow.h"
 #include "core/page/Page.h"
 #include "core/page/WindowFeatures.h"
 #include "core/page/scrolling/ScrollingCoordinator.h"
+#include "core/timing/DOMWindowPerformance.h"
+#include "core/timing/Performance.h"
 #include "platform/EventDispatchForbiddenScope.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "platform/weborigin/Suborigin.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebFrameScheduler.h"
 #include "public/platform/WebScreenInfo.h"
 #include <memory>
 
 namespace blink {
 
@@ skipping 1306 matching lines @@
     // If fetcher->countPreloads() is not empty here, it's full of link
     // preloads, as speculatove preloads were cleared at DCL.
     if (frame() && documentLoader == frame()->loader().documentLoader() &&
         documentLoader->fetcher()->countPreloads())
       m_unusedPreloadsTimer.startOneShot(unusedPreloadTimeoutInSeconds,
                                          BLINK_FROM_HERE);
   } else {
     dispatchEvent(loadEvent, document());
   }
 
+  Performance* performance = DOMWindowPerformance::performance(*this);

[panicker, 2016/11/14 17:38:52]

these 2 lines can go inside the if () below..

[sunjian, 2016/11/14 22:12:28]

Done.

+  DCHECK(performance);
+  if (frame())
+    performance->addNavigationTiming(frame());
+
   // For load events, send a separate load event to the enclosing frame only.
   // This is a DOM extension and is independent of bubbling/capturing rules of
   // the DOM.
   FrameOwner* owner = frame() ? frame()->owner() : nullptr;
   if (owner)
     owner->dispatchLoad();
 
   TRACE_EVENT_INSTANT1("devtools.timeline", "MarkLoad",
                        TRACE_EVENT_SCOPE_THREAD, "data",
                        InspectorMarkLoadEvent::data(frame()));
@@ skipping 137 matching lines @@
 
 LocalFrame* LocalDOMWindow::frame() const {
   // If the LocalDOMWindow still has a frame reference, that frame must point
   // back to this LocalDOMWindow: otherwise, it's easy to get into a situation
   // where script execution leaks between different LocalDOMWindows.
   SECURITY_DCHECK(!m_frame || m_frame->domWindow() == this);
   return m_frame;
 }
 
 }  // namespace blink