Early out for inactive documents in FrameView lifecycle updating functions

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 2500 matching lines @@
     // This must be called from the root frame, since it recurses down, not up.
     // Otherwise the lifecycles of the frames might be out of sync.
     DCHECK(m_frame->isLocalRoot());
 
     // Only the following target states are supported.
     DCHECK(targetState == DocumentLifecycle::LayoutClean
         || targetState == DocumentLifecycle::CompositingClean
         || targetState == DocumentLifecycle::PrePaintClean
         || targetState == DocumentLifecycle::PaintClean);
 
+    if (!m_frame->document()->isActive())
+        return;
+
     TemporaryChange<DocumentLifecycle::LifecycleState> targetStateScope(m_currentUpdateLifecyclePhasesTargetState, targetState);
 
     if (shouldThrottleRendering()) {
         updateViewportIntersectionsForSubtree(std::min(targetState, DocumentLifecycle::CompositingClean));
         return;
     }
 
     updateStyleAndLayoutIfNeededRecursive();
     DCHECK(lifecycle().state() >= DocumentLifecycle::LayoutClean);
 
@@ skipping 145 matching lines @@
 }
 
 void FrameView::updateStyleAndLayoutIfNeededRecursive()
 {
     SCOPED_BLINK_UMA_HISTOGRAM_TIMER("Blink.StyleAndLayout.UpdateTime");
     updateStyleAndLayoutIfNeededRecursiveInternal();
 }
 
 void FrameView::updateStyleAndLayoutIfNeededRecursiveInternal()
 {
-    if (shouldThrottleRendering())
+    if (shouldThrottleRendering() || !m_frame->document()->isActive())
         return;
 
     ScopedFrameBlamer frameBlamer(m_frame);
     TRACE_EVENT0("blink", "FrameView::updateStyleAndLayoutIfNeededRecursive");
 
     // We have to crawl our entire subtree looking for any FrameViews that need
     // layout and make sure they are up to date.
     // Mac actually tests for intersection with the dirty region and tries not to
     // update layout for frames that are outside the dirty region.  Not only does this seem
     // pointless (since those frames will have set a zero timer to layout anyway), but
@@ skipping 1567 matching lines @@
     return m_subtreeThrottled || (m_hiddenForThrottling && m_crossOriginForThrottling);
 }
 
 LayoutBox& FrameView::boxForScrollControlPaintInvalidation() const
 {
     ASSERT(!layoutViewItem().isNull());
     return *layoutView();
 }
 
 } // namespace blink