First version of PerformanceObserver

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 172 matching lines @@
 #include "core/page/ChromeClient.h"
 #include "core/page/EventWithHitTestResults.h"
 #include "core/page/FocusController.h"
 #include "core/page/FrameTree.h"
 #include "core/page/Page.h"
 #include "core/page/PointerLockController.h"
 #include "core/page/scrolling/ScrollingCoordinator.h"
 #include "core/svg/SVGDocumentExtensions.h"
 #include "core/svg/SVGTitleElement.h"
 #include "core/svg/SVGUseElement.h"
+#include "core/timing/DOMWindowPerformance.h"
+#include "core/timing/Performance.h"
 #include "core/workers/SharedWorkerRepositoryClient.h"
 #include "core/xml/parser/XMLDocumentParser.h"
 #include "platform/DateComponents.h"
 #include "platform/EventDispatchForbiddenScope.h"
 #include "platform/Language.h"
 #include "platform/LengthFunctions.h"
 #include "platform/Logging.h"
 #include "platform/PluginScriptForbiddenScope.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/ScriptForbiddenScope.h"
@@ skipping 4747 matching lines @@
 void Document::tasksWereResumed()
 {
     scriptRunner()->resume();
 
     if (m_parser)
         m_parser->resumeScheduledTasks();
     if (m_scriptedAnimationController)
         m_scriptedAnimationController->resume();
 
     MutationObserver::resumeSuspendedObservers();
+    if (m_domWindow)
+        DOMWindowPerformance::performance(*m_domWindow)->resumeSuspendedObservers();
 }
 
 // FIXME: suspendScheduledTasks(), resumeScheduledTasks(), tasksNeedSuspension()
 // should be moved to LocalDOMWindow once it inherits ExecutionContext
 void Document::suspendScheduledTasks()
 {
     ExecutionContext::suspendScheduledTasks();
     m_taskRunner->suspend();
 }
 
@@ skipping 734 matching lines @@
 #ifndef NDEBUG
 using namespace blink;
 void showLiveDocumentInstances()
 {
     Document::WeakDocumentSet& set = Document::liveDocumentSet();
     fprintf(stderr, "There are %u documents currently alive:\n", set.size());
     for (Document* document : set)
         fprintf(stderr, "- Document %p URL: %s\n", document, document->url().string().utf8().data());
 }
 #endif