scheduler: Throttle timers in out-of-view frames

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

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 4240 matching lines @@
     // If any of our parents are throttled, we must be too.
     m_subtreeThrottled = false;
     const SecurityOrigin* origin = frame().securityContext()->getSecurityOrigin();
     for (Frame* parentFrame = m_frame->tree().parent(); parentFrame; parentFrame = parentFrame->tree().parent()) {
         const SecurityOrigin* parentOrigin = parentFrame->securityContext()->getSecurityOrigin();
         if (!origin->canAccess(parentOrigin))
             m_crossOriginForThrottling = true;
         if (parentFrame->isLocalFrame() && toLocalFrame(parentFrame)->view() && toLocalFrame(parentFrame)->view()->canThrottleRendering())
             m_subtreeThrottled = true;
     }
+    m_frame->frameScheduler()->setFrameVisible(!m_hiddenForThrottling);
+    m_frame->frameScheduler()->setCrossOrigin(m_crossOriginForThrottling);
 }
 
 void FrameView::notifyRenderThrottlingObserversForTesting()
 {
     DCHECK(m_renderThrottlingObserverNotificationFactory->isPending());
     notifyRenderThrottlingObservers();
 }
 
 void FrameView::notifyRenderThrottlingObservers()
 {
@@ skipping 52 matching lines @@
 }
 
 bool FrameView::canThrottleRendering() const
 {
     if (!RuntimeEnabledFeatures::renderingPipelineThrottlingEnabled())
         return false;
     return m_subtreeThrottled || (m_hiddenForThrottling && m_crossOriginForThrottling);
 }
 
 } // namespace blink