Merge commit '7621e2f8dec938cf48181c8b10afc9b01f444e68' into beta

submodules/Display/Source/GridItemNode.swift

@@ -0,0 +1,24 @@
+import Foundation
+import UIKit
+import AsyncDisplayKit
+
+open class GridItemNode: ASDisplayNode {
+    open var isVisibleInGrid = false
+    open var isGridScrolling = false
+    
+    final var cachedFrame: CGRect = CGRect()
+    override open var frame: CGRect {
+        get {
+            return self.cachedFrame
+        } set(value) {
+            self.cachedFrame = value
+            super.frame = value
+        }
+    }
+    
+    open func updateLayout(item: GridItem, size: CGSize, isVisible: Bool, synchronousLoads: Bool) {
+    }
+    
+    open func updateAbsoluteRect(_ absoluteRect: CGRect, within containerSize: CGSize) {
+    }
+}