[Layout API] Use ownerLayoutItem in updateScrollCorner()

third_party/WebKit/Source/core/layout/api/LayoutItem.h

Index: third_party/WebKit/Source/core/layout/api/LayoutItem.h
diff --git a/third_party/WebKit/Source/core/layout/api/LayoutItem.h b/third_party/WebKit/Source/core/layout/api/LayoutItem.h
index cde7c949c6c75473cda579dd834a748a2fa0e281..b42f21cc49dfd90e7cc81be2f129ddf39f4c2ff3 100644
--- a/third_party/WebKit/Source/core/layout/api/LayoutItem.h
+++ b/third_party/WebKit/Source/core/layout/api/LayoutItem.h
@@ -318,6 +318,11 @@ public:
         m_layoutObject->invalidatePaintRectangle(dirtyRect);
     }
 
+    PassRefPtr<ComputedStyle> getUncachedPseudoStyle(const PseudoStyleRequest& pseudoStyleRequest, const ComputedStyle* parentStyle = nullptr, const ComputedStyle* ownStyle = nullptr) const
+    {
+        return m_layoutObject->getUncachedPseudoStyle(pseudoStyleRequest, parentStyle, ownStyle);
+    }
+
 protected:
     LayoutObject* layoutObject() { return m_layoutObject; }
     const LayoutObject* layoutObject() const { return m_layoutObject; }