Make the compositing assert disabler for paint invalidation more targeted.

Source/core/rendering/RenderLayerScrollableArea.cpp

Index: Source/core/rendering/RenderLayerScrollableArea.cpp
diff --git a/Source/core/rendering/RenderLayerScrollableArea.cpp b/Source/core/rendering/RenderLayerScrollableArea.cpp
index 20df23b7ae2f22478e4727bd197767d7039116d9..d1caf1c5b142e0f294191bb5b73165c4550aae8f 100644
--- a/Source/core/rendering/RenderLayerScrollableArea.cpp
+++ b/Source/core/rendering/RenderLayerScrollableArea.cpp
@@ -403,6 +403,9 @@ void RenderLayerScrollableArea::setScrollOffset(const IntPoint& newScrollOffset)
 
     // Just schedule a full paint invalidation of our object.
     if (requiresPaintInvalidation) {
+        // For querying RenderLayer::compositingState()
+        // This code appears correct, since scrolling outside of layout happens during activities that do not dirty compositing state.
+        DisableCompositingQueryAsserts disabler;
         if (box().frameView()->isInPerformLayout())
             box().setShouldDoFullPaintInvalidation(true);
         else