ElementsAccessor::Delete() handlified.

src/elements.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 106 matching lines @@
   // backing store as necessary. This method does NOT honor the semantics of
   // EcmaScript 5.1 15.4.5.2, arrays can be shrunk beyond non-deletable
   // elements. This method should only be called for array expansion OR by
   // runtime JavaScript code that use InternalArrays and don't care about
   // EcmaScript 5.1 semantics.
   MUST_USE_RESULT virtual MaybeObject* SetCapacityAndLength(JSArray* array,
                                                             int capacity,
                                                             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.
   static const int kCopyToEnd = -1;
   // If kCopyToEndAndInitializeToHole is specified as the copy_size to
   // CopyElements, it copies all of elements from source after source_start to
   // destination array, padding any remaining uninitialized elements in the
   // destination array with the hole.
   static const int kCopyToEndAndInitializeToHole = -2;
 
@@ skipping 60 matching lines @@
 
 void CheckArrayAbuse(JSObject* obj, const char* op, uint32_t key,
                      bool allow_appending = false);
 
 Handle<Object> ArrayConstructInitializeElements(Handle<JSArray> array,
                                                 Arguments* args);
 
 } }  // namespace v8::internal
 
 #endif  // V8_ELEMENTS_H_