[IndexedDB] Propogating changes to observers : Renderer

third_party/WebKit/Source/modules/indexeddb/IDBObserverChanges.idl

 // Copyright 2016 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.
 
 // https://github.com/WICG/indexed-db-observers/blob/gh-pages/EXPLAINER.md#changes-argument
 
 [
    Exposed=(Window, Worker),
    RuntimeEnabled=IDBObserver
 ] interface IDBObserverChanges {
     readonly attribute IDBDatabase database;
     // Transaction contains the same object stores as the transaction on which IDBTransaction.observe was called.
     readonly attribute IDBTransaction transaction;
-    // This is the javascript Map<String, sequence<IDBObserverChangesRecord>>,
+    // This is the equivalent to javascript { String : sequence<IDBObservation> } dictionary,

[Marijn Kruisselbrink, 2016/07/13 17:58:45]

I think it's fine to make this change for now and not make things more
complicated by trying to figure out how to return a map, but maybe add a TODO
somewhere that the spec actually does require a Map rather than just an
object/dictionary.

[palakj1, 2016/07/13 22:48:38]

Changed to map

     // where the key is the object store name.
-    // TODO(palakj) : Replace 'any' with maplike<DOMString, sequence<IDBObserverChangesRecord>>.
     [CallWith=ScriptState] readonly attribute any records;
 };