Replacing Indexed DB Chromium IPC with Mojo

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 <utility>
+
 #include "content/browser/indexed_db/indexed_db_database_error.h"
 #include "content/browser/indexed_db/indexed_db_dispatcher_host.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),
-      ipc_database_callbacks_id_(ipc_database_callbacks_id) {}
+    indexed_db::mojom::DatabaseObserverPtr database_observer)
+    : database_observer_(std::move(database_observer)) {}
 
 IndexedDBDatabaseCallbacks::~IndexedDBDatabaseCallbacks() {}
 
 void IndexedDBDatabaseCallbacks::OnForcedClose() {
-  if (!dispatcher_host_.get())
+  if (!database_observer_)
     return;
 
-  dispatcher_host_->Send(new IndexedDBMsg_DatabaseCallbacksForcedClose(
-      ipc_thread_id_, ipc_database_callbacks_id_));
-
-  dispatcher_host_ = NULL;
+  database_observer_->OnForcedClosed();
+  database_observer_ = nullptr;
 }
 
 void IndexedDBDatabaseCallbacks::OnVersionChange(int64_t old_version,
                                                  int64_t new_version) {
-  if (!dispatcher_host_.get())
+  if (!database_observer_)
     return;
 
-  dispatcher_host_->Send(new IndexedDBMsg_DatabaseCallbacksVersionChange(
-      ipc_thread_id_, ipc_database_callbacks_id_, old_version, new_version));
+  database_observer_->OnVersionChange(old_version, new_version);
 }
 
 void IndexedDBDatabaseCallbacks::OnAbort(int64_t host_transaction_id,
                                          const IndexedDBDatabaseError& error) {
-  if (!dispatcher_host_.get())
+  if (!database_observer_)
     return;
 
-  dispatcher_host_->FinishTransaction(host_transaction_id, false);
-  dispatcher_host_->Send(new IndexedDBMsg_DatabaseCallbacksAbort(
-      ipc_thread_id_,
-      ipc_database_callbacks_id_,
-      dispatcher_host_->RendererTransactionId(host_transaction_id),
-      error.code(),
-      error.message()));
+  database_observer_->OnTransactionFinished(host_transaction_id, false);
+  database_observer_->OnTransactionAborted(host_transaction_id, error);
 }
 
 void IndexedDBDatabaseCallbacks::OnComplete(int64_t host_transaction_id) {
-  if (!dispatcher_host_.get())
+  if (!database_observer_)
     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)));
+  database_observer_->OnTransactionFinished(host_transaction_id, false);
+  database_observer_->OnTransactionCompleted(host_transaction_id);
 }
 
 }  // namespace content