Revert of Move throttling of background timers into the renderer scheduler

third_party/WebKit/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 424 matching lines @@
     , m_pluginLoadingTimer(this, &Document::pluginLoadingTimerFired)
     , m_documentTiming(*this)
     , m_writeRecursionIsTooDeep(false)
     , m_writeRecursionDepth(0)
     , m_taskRunner(MainThreadTaskRunner::create(this))
     , m_registrationContext(initializer.registrationContext(this))
     , m_elementDataCacheClearTimer(this, &Document::elementDataCacheClearTimerFired)
     , m_timeline(AnimationTimeline::create(this))
     , m_templateDocumentHost(nullptr)
     , m_didAssociateFormControlsTimer(this, &Document::didAssociateFormControlsTimerFired)
-    , m_timers(timerTaskRunner()->adoptClone())
+    , m_timers(Platform::current()->currentThread()->scheduler()->timerTaskRunner()->adoptClone())
     , m_hasViewportUnits(false)
     , m_styleRecalcElementCounter(0)
     , m_parserSyncPolicy(AllowAsynchronousParsing)
     , m_nodeCount(0)
 {
     if (m_frame) {
         ASSERT(m_frame->page());
         provideContextFeaturesToDocumentFrom(*this, *m_frame->page());
 
         m_fetcher = m_frame->loader().documentLoader()->fetcher();
+        m_timers.setTimerTaskRunner(m_frame->frameScheduler()->timerTaskRunner()->adoptClone());
         FrameFetchContext::provideDocumentToContext(m_fetcher->context(), this);
     } else if (m_importsController) {
         m_fetcher = FrameFetchContext::createContextAndFetcher(nullptr);
         FrameFetchContext::provideDocumentToContext(m_fetcher->context(), this);
     } else {
         m_fetcher = ResourceFetcher::create(nullptr);
     }
 
     // We depend on the url getting immediately set in subframes, but we
     // also depend on the url NOT getting immediately set in opened windows.
@@ skipping 2403 matching lines @@
 const KURL& Document::virtualURL() const
 {
     return m_url;
 }
 
 KURL Document::virtualCompleteURL(const String& url) const
 {
     return completeURL(url);
 }
 
+double Document::timerAlignmentInterval() const
+{
+    Page* p = page();
+    if (!p)
+        return DOMTimer::visiblePageAlignmentInterval();
+    return p->timerAlignmentInterval();
+}
+
 DOMTimerCoordinator* Document::timers()
 {
     return &m_timers;
 }
 
 EventTarget* Document::errorEventTarget()
 {
     return domWindow();
 }
 
@@ skipping 120 matching lines @@
     // Only imports on master documents can trigger rendering.
     if (HTMLImportLoader* import = importLoader())
         import->didRemoveAllPendingStylesheet();
     if (!haveImportsLoaded())
         return;
     didLoadAllScriptBlockingResources();
 }
 
 void Document::didLoadAllScriptBlockingResources()
 {
-    loadingTaskRunner()->postTask(BLINK_FROM_HERE, m_executeScriptsWaitingForResourcesTask->cancelAndCreate());
+    Platform::current()->currentThread()->scheduler()->loadingTaskRunner()->postTask(
+        BLINK_FROM_HERE, m_executeScriptsWaitingForResourcesTask->cancelAndCreate());
 
     if (frame())
         frame()->loader().client()->didRemoveAllPendingStylesheet();
 
     if (m_gotoAnchorNeededAfterStylesheetsLoad && view())
         view()->processUrlFragment(m_url);
 }
 
 void Document::executeScriptsWaitingForResources()
 {
@@ skipping 2703 matching lines @@
             context = context->parentDocument();
         }
     }
     return true;
 }
 
 WebTaskRunner* Document::loadingTaskRunner() const
 {
     if (frame())
         return frame()->frameScheduler()->loadingTaskRunner();
-    if (m_importsController)
-        return m_importsController->master()->loadingTaskRunner();
-    if (m_contextDocument)
-        return m_contextDocument->loadingTaskRunner();
     return Platform::current()->currentThread()->scheduler()->loadingTaskRunner();
 }
 
 WebTaskRunner* Document::timerTaskRunner() const
 {
-    if (frame())
-        return m_frame->frameScheduler()->timerTaskRunner();
-    if (m_importsController)
-        return m_importsController->master()->timerTaskRunner();
-    if (m_contextDocument)
-        return m_contextDocument->timerTaskRunner();
-    return Platform::current()->currentThread()->scheduler()->timerTaskRunner();
+    return m_timers.timerTaskRunner();
 }
 
 DEFINE_TRACE(Document)
 {
 #if ENABLE(OILPAN)
     visitor->trace(m_importsController);
     visitor->trace(m_docType);
     visitor->trace(m_implementation);
     visitor->trace(m_autofocusElement);
     visitor->trace(m_focusedElement);
@@ skipping 60 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