Allow throttling in painting microbenchmark

third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp

 /*
  * Copyright (C) 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 2298 matching lines @@
 bool CompositedLayerMapping::needsRepaint(const GraphicsLayer& graphicsLayer) const
 {
     return isScrollableAreaLayer(&graphicsLayer) ? true : m_owningLayer.needsRepaint();
 }
 
 void CompositedLayerMapping::paintContents(const GraphicsLayer* graphicsLayer, GraphicsContext& context,
     GraphicsLayerPaintingPhase graphicsLayerPaintingPhase, const IntRect& interestRect) const
 {
     // https://code.google.com/p/chromium/issues/detail?id=343772
     DisableCompositingQueryAsserts disabler;
+    // Allow throttling to make sure no painting paths (e.g.,
+    // ContentLayerDelegate::paintContents) try to paint throttled content.
+    DocumentLifecycle::AllowThrottlingScope allowThrottling(m_owningLayer.layoutObject()->document().lifecycle());
 #if ENABLE(ASSERT)
     // FIXME: once the state machine is ready, this can be removed and we can refer to that instead.
     if (Page* page = layoutObject()->frame()->page())
         page->setIsPainting(true);
 #endif
 
     TRACE_EVENT1("devtools.timeline", "Paint", "data", InspectorPaintEvent::data(m_owningLayer.layoutObject(), LayoutRect(interestRect), graphicsLayer));
 
     PaintLayerFlags paintLayerFlags = 0;
     if (graphicsLayerPaintingPhase & GraphicsLayerPaintBackground)
@@ skipping 244 matching lines @@
     } else if (graphicsLayer == m_scrollingContentsLayer.get()) {
         name = "Scrolling Contents Layer";
     } else {
         ASSERT_NOT_REACHED();
     }
 
     return name;
 }
 
 } // namespace blink