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 c8523dcf456d0ae3bdc2fdc9567c761dfc4300f1..e61a394ed29245cab64f3013f21d4b22fd1b3d6a 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();
 }
@@ -592,6 +598,12 @@ void PaintLayerScrollableArea::scrollbarVisibilityChanged() {
     return view->clearHitTestCache();
 }
 
+void PaintLayerScrollableArea::scrollbarFrameRectChanged() {
+  // Size of non-overlay scrollbar affects overflow clip rect.
+  if (!hasOverlayScrollbars())
+    box().setNeedsPaintPropertyUpdate();
+}
+
 bool PaintLayerScrollableArea::scrollbarsCanBeActive() const {
   LayoutView* view = box().view();
   if (!view)