Send IndexedDB observations through IDBDatabaseCallbacks.

content/common/indexed_db/indexed_db_enum_traits.h

 // 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.
 
 #ifndef CONTENT_COMMON_INDEXED_DB_INDEXED_DB_ENUM_TRAITS_H_
 #define CONTENT_COMMON_INDEXED_DB_INDEXED_DB_ENUM_TRAITS_H_
 
 #include "content/common/indexed_db/indexed_db.mojom.h"
 #include "third_party/WebKit/public/platform/modules/indexeddb/WebIDBTypes.h"
 
 namespace mojo {
 
 template <>
 struct EnumTraits<indexed_db::mojom::CursorDirection,
                   blink::WebIDBCursorDirection> {
   static indexed_db::mojom::CursorDirection ToMojom(
       blink::WebIDBCursorDirection input);
   static bool FromMojom(indexed_db::mojom::CursorDirection input,
                         blink::WebIDBCursorDirection* output);
 };
 
 template <>
 struct EnumTraits<indexed_db::mojom::DataLoss, blink::WebIDBDataLoss> {
   static indexed_db::mojom::DataLoss ToMojom(blink::WebIDBDataLoss input);
   static bool FromMojom(indexed_db::mojom::DataLoss input,
                         blink::WebIDBDataLoss* output);
 };
 
 template <>
+struct EnumTraits<indexed_db::mojom::OperationType,
+                  blink::WebIDBOperationType> {
+  static indexed_db::mojom::OperationType ToMojom(
+      blink::WebIDBOperationType input);
+  static bool FromMojom(indexed_db::mojom::OperationType input,
+                        blink::WebIDBOperationType* output);
+};
+
+template <>
 struct EnumTraits<indexed_db::mojom::PutMode, blink::WebIDBPutMode> {
   static indexed_db::mojom::PutMode ToMojom(blink::WebIDBPutMode input);
   static bool FromMojom(indexed_db::mojom::PutMode input,
                         blink::WebIDBPutMode* output);
 };
 
 template <>
 struct EnumTraits<indexed_db::mojom::TaskType, blink::WebIDBTaskType> {
   static indexed_db::mojom::TaskType ToMojom(blink::WebIDBTaskType input);
   static bool FromMojom(indexed_db::mojom::TaskType input,
                         blink::WebIDBTaskType* output);
 };
 
 template <>
 struct EnumTraits<indexed_db::mojom::TransactionMode,
                   blink::WebIDBTransactionMode> {
   static indexed_db::mojom::TransactionMode ToMojom(
       blink::WebIDBTransactionMode input);
   static bool FromMojom(indexed_db::mojom::TransactionMode input,
                         blink::WebIDBTransactionMode* output);
 };
 
 }  // namespace mojo
 
 #endif  // CONTENT_COMMON_INDEXED_DB_INDEXED_DB_ENUM_TRAITS_H_