Stop clipping to visual rect bounds in PLC::CalculateBackgroundClipRect

third_party/WebKit/Source/core/paint/PaintLayerClipper.h

Index: third_party/WebKit/Source/core/paint/PaintLayerClipper.h
diff --git a/third_party/WebKit/Source/core/paint/PaintLayerClipper.h b/third_party/WebKit/Source/core/paint/PaintLayerClipper.h
index f37081d76ac03dffe458cc49048c418d1f16e7c1..33c55b932536521bf3bcf56c52edf1e5e4effca5 100644
--- a/third_party/WebKit/Source/core/paint/PaintLayerClipper.h
+++ b/third_party/WebKit/Source/core/paint/PaintLayerClipper.h
@@ -223,9 +223,12 @@ class CORE_EXPORT PaintLayerClipper {
   ALWAYS_INLINE bool ShouldRespectOverflowClip(const ClipRectsContext&) const;
 
   // Returned clip rect in |output| is in the space of the context's rootLayer.
+  // if |should_clip_to_visual_overflow| is true, clips to the bounds of the
+  // visual overflow of |layer_|.
   ALWAYS_INLINE void CalculateBackgroundClipRectWithGeometryMapper(
       const ClipRectsContext&,
-      ClipRect& output) const;
+      ClipRect& output,
+      bool should_clip_to_visual_overflow) const;
 
   ALWAYS_INLINE void InitializeCommonClipRectState(
       const ClipRectsContext&,