Handle resize in PaintPropertyTreeBuilder::updateForObjectSizeAndLocation()

third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp

Index: third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp
diff --git a/third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp b/third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp
index 5e1cd751f37909144240a811091817055e5d786a..f43f1c57920db9375a8ee3c8c8f5449a4b5d8046 100644
--- a/third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp
+++ b/third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp
@@ -563,6 +563,12 @@ IntSize PaintLayerScrollableArea::contentsSize() const {
   return IntSize(pixelSnappedScrollWidth(), pixelSnappedScrollHeight());
 }
 
+void PaintLayerScrollableArea::contentsResized() {
+  ScrollableArea::contentsResized();
+  // Need to update the bounds of the scroll property.
+  box().setNeedsPaintPropertyUpdate();
+}
+
 bool PaintLayerScrollableArea::isScrollable() const {
   return scrollsOverflow();
 }