[Line Layout API] Add needsLayout() to LineLayoutItem

Source/core/layout/api/LineLayoutItem.h

Index: Source/core/layout/api/LineLayoutItem.h
diff --git a/Source/core/layout/api/LineLayoutItem.h b/Source/core/layout/api/LineLayoutItem.h
index b7fea15272e3771a680a6fac4f69319146d6b3a5..e443ab316aeba3e7b8c576d06aa466b15060a3d0 100644
--- a/Source/core/layout/api/LineLayoutItem.h
+++ b/Source/core/layout/api/LineLayoutItem.h
@@ -40,6 +40,11 @@ public:
     // https://crbug.com/499321
     operator LayoutObject*() const { return m_layoutObject; }
 
+    bool needsLayout() const
+    {
+        return m_layoutObject->needsLayout();
+    }
+
     Node* node() const
     {
         return m_layoutObject->node();