Temporarily CHECK use after free in Value

chrome/browser/ui/cocoa/applescript/apple_event_util.mm

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/applescript/apple_event_util.h"
 
 #import <Carbon/Carbon.h>
 #include <stddef.h>
 
 #include "base/logging.h"
@@ skipping 74 matching lines @@
       value->GetAsList(&list_value);
       descriptor = [NSAppleEventDescriptor listDescriptor];
       for (size_t i = 0; i < list_value->GetSize(); ++i) {
         const base::Value* item;
         list_value->Get(i, &item);
         [descriptor insertDescriptor:ValueToAppleEventDescriptor(item)
                              atIndex:0];
       }
       break;
     }
+
+    case base::Value::Type::DELETED:
+      // TODO(crbug.com/697817): This means |value| is used after free.
+      CHECK(false);
+      break;
   }
 
   return descriptor;
 }
 
 }  // namespace mac
 }  // namespace chrome