Invalidate previousLocationInBacking in LayoutObject::clearPreviousVisualRects()

third_party/WebKit/Source/core/layout/LayoutObject.cpp

Index: third_party/WebKit/Source/core/layout/LayoutObject.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutObject.cpp b/third_party/WebKit/Source/core/layout/LayoutObject.cpp
index c34902ecec7e5da81b2824dc66d53d77890c1574..9534e3100d2d326208c8a9c88f2514344fcf0f4d 100644
--- a/third_party/WebKit/Source/core/layout/LayoutObject.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutObject.cpp
@@ -1258,7 +1258,11 @@ void LayoutObject::adjustPreviousPaintInvalidationForScrollIfNeeded(
 
 void LayoutObject::clearPreviousVisualRects() {
   setPreviousVisualRect(LayoutRect());
-  // After clearing ("invalidating" the visual rects, mark this object as
+  ObjectPaintInvalidator(*this).setPreviousLocationInBacking(LayoutPoint());
+  // Ensure check paint invalidation of subtree that would be triggered by
+  // location change if we had valid previous location.
+  setMayNeedPaintInvalidationSubtree();
+  // After clearing ("invalidating") the visual rects, mark this object as
   // needing to re-compute them.
   setShouldDoFullPaintInvalidation();
 }