[IndexedDB] Propogating changes to observers : Renderer

content/browser/indexed_db/indexed_db_database_callbacks.cc

 // Copyright (c) 2012 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.
 
 #include "content/browser/indexed_db/indexed_db_database_callbacks.h"
 
 #include "content/browser/indexed_db/indexed_db_database_error.h"
 #include "content/browser/indexed_db/indexed_db_dispatcher_host.h"
+#include "content/browser/indexed_db/indexed_db_observer_changes.h"
 #include "content/common/indexed_db/indexed_db_messages.h"
 
 namespace content {
 
 IndexedDBDatabaseCallbacks::IndexedDBDatabaseCallbacks(
     IndexedDBDispatcherHost* dispatcher_host,
     int ipc_thread_id,
     int ipc_database_callbacks_id)
     : dispatcher_host_(dispatcher_host),
       ipc_thread_id_(ipc_thread_id),
@@ skipping 38 matching lines @@
   if (!dispatcher_host_.get())
     return;
 
   dispatcher_host_->FinishTransaction(host_transaction_id, true);
   dispatcher_host_->Send(new IndexedDBMsg_DatabaseCallbacksComplete(
       ipc_thread_id_,
       ipc_database_callbacks_id_,
       dispatcher_host_->RendererTransactionId(host_transaction_id)));
 }
 
+void IndexedDBDatabaseCallbacks::OnDatabaseChange(
+    std::unique_ptr<IndexedDBObserverChanges> changes) {
+  dispatcher_host_->Send(new IndexedDBMsg_DatabaseCallbacksChanges(
+      ipc_thread_id_, ipc_database_callbacks_id_,
+      IndexedDBDispatcherHost::ConvertObserverChanges(changes.release())));

[dmurph, 2016/07/08 18:40:44]

make this function accept a unique ptr. Then move the map, as you know you have
the only reference.

[palakj1, 2016/07/08 22:17:53]

Done.

+}
+
 }  // namespace content