Don't include descendants into LocalVisualRect if a box has both mask and overflow clip

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

Index: third_party/WebKit/Source/core/layout/LayoutBox.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutBox.cpp b/third_party/WebKit/Source/core/layout/LayoutBox.cpp
index 9b41ff4054dd1942d852aa9fac0d1914cefa14c2..881e0bfbaaa35e0dbc8404f9d9b7302bc84e6217 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBox.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBox.cpp
@@ -2435,8 +2435,10 @@ LayoutRect LayoutBox::LocalVisualRect() const {
   if (Style()->Visibility() != EVisibility::kVisible)
     return LayoutRect();
 
-  if (HasMask() && !RuntimeEnabledFeatures::slimmingPaintV2Enabled())
+  if (HasMask() && !ShouldClipOverflow() &&
+      !RuntimeEnabledFeatures::slimmingPaintV2Enabled())
     return LayoutRect(Layer()->BoxForFilterOrMask());
+
   return SelfVisualOverflowRect();
 }