[IndexedDB] Adding transaction and value support to observers

content/common/indexed_db/indexed_db.mojom

 // 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.
 
 // TODO: This will move to //third_party/WebKit when //content/child/indexed_db
 // is deleted but for now this will depend on //content/common types and so
 // so belongs here.
 
 module indexed_db.mojom;
 
@@ skipping 130 matching lines @@
 struct ReturnValue {
   Value value;
   Key primary_key;
   KeyPath key_path;
 };
 
 struct Observation {
   int64 object_store_id;
   OperationType type;
   KeyRange key_range;
+  Value? value;
+};
+
+struct ObserverTransaction {
+  int64 id;
+  array<int64> scope;
 };
 
 struct ObserverChanges {
   map<int32, array<int32>> observation_index_map;
+  map<int32, ObserverTransaction> transaction_map;
   array<Observation> observations;
 };
 
 // The Callbacks interface is used to return results for individual requests.
 // Some requests may return multiple results before completion, such as
 // UpgradeNeeded before SuccessDatabase.
 //
 // TODO(https://crbug.com/627484): Many of these could be replaced with
 // replies associated with particular messages.
 interface Callbacks {
@@ skipping 152 matching lines @@
 };
 
 interface Factory {
   GetDatabaseNames(associated Callbacks callbacks, url.mojom.Origin origin);
   Open(associated Callbacks callbacks,
        associated DatabaseCallbacks database_callbacks, url.mojom.Origin origin,
        mojo.common.mojom.String16 name, int64 version, int64 transaction_id);
   DeleteDatabase(associated Callbacks callbacks, url.mojom.Origin origin,
                  mojo.common.mojom.String16 name);
 };