Send IndexedDB observations through IDBDatabaseCallbacks.

third_party/WebKit/public/BUILD.gn

 # Copyright 2014 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("//build/buildflag_header.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//third_party/WebKit/public/public_features.gni")
 import("//third_party/WebKit/Source/config.gni")
 import("//third_party/WebKit/Source/core/core.gni")
 import("//tools/grit/grit_rule.gni")
@@ skipping 334 matching lines @@
     "platform/modules/indexeddb/WebIDBDatabase.h",
     "platform/modules/indexeddb/WebIDBDatabaseCallbacks.h",
     "platform/modules/indexeddb/WebIDBDatabaseError.h",
     "platform/modules/indexeddb/WebIDBDatabaseException.h",
     "platform/modules/indexeddb/WebIDBFactory.h",
     "platform/modules/indexeddb/WebIDBKey.h",
     "platform/modules/indexeddb/WebIDBKeyPath.h",
     "platform/modules/indexeddb/WebIDBKeyRange.h",
     "platform/modules/indexeddb/WebIDBMetadata.h",
     "platform/modules/indexeddb/WebIDBObservation.h",
-    "platform/modules/indexeddb/WebIDBObserver.h",
     "platform/modules/indexeddb/WebIDBTypes.h",
     "platform/modules/indexeddb/WebIDBValue.h",
     "platform/modules/installedapp/WebInstalledAppClient.h",
     "platform/modules/notifications/WebNotificationAction.h",
     "platform/modules/notifications/WebNotificationData.h",
     "platform/modules/notifications/WebNotificationDelegate.h",
     "platform/modules/notifications/WebNotificationManager.h",
     "platform/modules/notifications/WebNotificationResources.h",
     "platform/modules/permissions/WebPermissionType.h",
     "platform/modules/presentation/WebPresentationClient.h",
@@ skipping 395 matching lines @@
 # relegated to a separate target to avoid duplication between the variants.
 source_set("shared_typemap_traits") {
   visibility = [ ":*" ]
   sources = [
     "web/WindowFeaturesStructTraits.cpp",
   ]
   deps = [
     ":new_wrapper_types_mojo_bindings_shared__generator",
   ]
 }