scheduler: Throttle timers in out-of-view frames

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

Index: third_party/WebKit/Source/core/frame/FrameView.cpp
diff --git a/third_party/WebKit/Source/core/frame/FrameView.cpp b/third_party/WebKit/Source/core/frame/FrameView.cpp
index 92177225f6e30dbaa865f5197f386664f36000e4..3ad4a623b46c2f1ca2802e9d1976f8b3748944ac 100644
--- a/third_party/WebKit/Source/core/frame/FrameView.cpp
+++ b/third_party/WebKit/Source/core/frame/FrameView.cpp
@@ -4139,6 +4139,7 @@ void FrameView::updateThrottlingStatus()
 {
     // Only offscreen frames can be throttled.
     m_hiddenForThrottling = m_viewportIntersectionValid && m_viewportIntersection.isEmpty();
+    m_frame->frameScheduler()->setFrameVisible(!m_hiddenForThrottling);
 
     // We only throttle the rendering pipeline in cross-origin frames. This is
     // to avoid a situation where an ancestor frame directly depends on the
@@ -4159,6 +4160,7 @@ void FrameView::updateThrottlingStatus()
         if (parentFrame->isLocalFrame() && toLocalFrame(parentFrame)->view() && toLocalFrame(parentFrame)->view()->canThrottleRendering())
             m_subtreeThrottled = true;
     }
+    m_frame->frameScheduler()->setCrossOrigin(m_crossOriginForThrottling);
 }
 
 void FrameView::notifyRenderThrottlingObserversForTesting()