ElementsAccessor::Delete() handlified.

src/elements.h

Index: src/elements.h
diff --git a/src/elements.h b/src/elements.h
index 13538690522612e2e804fad0b7e9d13cf1bafaf1..50a75ebc9be6baef0a047dd90e1b64755bb5e33a 100644
--- a/src/elements.h
+++ b/src/elements.h
@@ -124,9 +124,10 @@ class ElementsAccessor {
                                                             int length) = 0;
 
   // Deletes an element in an object, returning a new elements backing store.
-  MUST_USE_RESULT virtual MaybeObject* Delete(JSObject* holder,
-                                              uint32_t key,
-                                              JSReceiver::DeleteMode mode) = 0;
+  MUST_USE_RESULT virtual Handle<Object> Delete(
+      Handle<JSObject> holder,
+      uint32_t key,
+      JSReceiver::DeleteMode mode) = 0;
 
   // If kCopyToEnd is specified as the copy_size to CopyElements, it copies all
   // of elements from source after source_start to the destination array.