[S.P.] Don't draw frames of animated images that are offscreen

Source/core/layout/LayoutBoxModelObject.cpp

Index: Source/core/layout/LayoutBoxModelObject.cpp
diff --git a/Source/core/layout/LayoutBoxModelObject.cpp b/Source/core/layout/LayoutBoxModelObject.cpp
index 7f7e52dab4b00821c2d0e9d6cc0a33e551e49f5e..7522b940ef4c4b4920ba66ff718edd67ebe94b22 100644
--- a/Source/core/layout/LayoutBoxModelObject.cpp
+++ b/Source/core/layout/LayoutBoxModelObject.cpp
@@ -251,7 +251,7 @@ void LayoutBoxModelObject::addLayerHitTestRects(LayerHitTestRects& rects, const
     }
 }
 
-void LayoutBoxModelObject::invalidateTreeIfNeeded(const PaintInvalidationState& paintInvalidationState)
+void LayoutBoxModelObject::invalidateTreeIfNeeded(PaintInvalidationState& paintInvalidationState)
 {
     ASSERT(!needsLayout());
 
@@ -266,6 +266,9 @@ void LayoutBoxModelObject::invalidateTreeIfNeeded(const PaintInvalidationState&
     PaintInvalidationReason reason = invalidatePaintIfNeeded(paintInvalidationState, newPaintInvalidationContainer);
     clearPaintInvalidationState(paintInvalidationState);
 
+    if (reason == PaintInvalidationDelayedFull)
+        paintInvalidationState.pushDelayedPaintInvalidationTarget(*this);
+
     PaintInvalidationState childTreeWalkState(paintInvalidationState, *this, newPaintInvalidationContainer);
     if (reason == PaintInvalidationLocationChange)
         childTreeWalkState.setForceCheckForPaintInvalidation();