IDBObserver: Lifetime Management: Adding Observer

content/child/indexed_db/webidbdatabase_impl.cc

Index: content/child/indexed_db/webidbdatabase_impl.cc
diff --git a/content/child/indexed_db/webidbdatabase_impl.cc b/content/child/indexed_db/webidbdatabase_impl.cc
index 28408b7c32facfd6d381f350e2f39ef57d4cb5a9..c9e7414677b4a3407ca7c2ca89d2695e212f6adb 100644
--- a/content/child/indexed_db/webidbdatabase_impl.cc
+++ b/content/child/indexed_db/webidbdatabase_impl.cc
@@ -106,7 +106,17 @@ void WebIDBDatabaseImpl::observe(blink::IDBObserver* observer,
                                  long long transaction_id) {
   IndexedDBDispatcher* dispatcher =
       IndexedDBDispatcher::ThreadSpecificInstance(thread_safe_sender_.get());
-  dispatcher->AddIDBObserver(ipc_database_id_, transaction_id, observer);
+  int32_t observer_id =
+      dispatcher->AddIDBObserver(ipc_database_id_, transaction_id, observer);
+  observers_id_.push_back(observer_id);
+}
+
+void WebIDBDatabaseImpl::unobserve(blink::IDBObserver* observer) {
+  IndexedDBDispatcher* dispatcher =
+      IndexedDBDispatcher::ThreadSpecificInstance(thread_safe_sender_.get());
+  std::vector<int32_t> remove_observers =
+      dispatcher->RemoveIDBObserver(ipc_database_id_, observer);
+  // TODO(palakj): Remove id from observes_id_
 }
 
 void WebIDBDatabaseImpl::get(long long transaction_id,