Migrate the IndexedDB backend from Blink to Chromium

content/browser/indexed_db/indexed_db_database_callbacks_wrapper.cc

+// Copyright (c) 2013 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_wrapper.h"
+
+namespace content {
+
+IndexedDBDatabaseCallbacksWrapper::IndexedDBDatabaseCallbacksWrapper(
+    WebKit::WebIDBDatabaseCallbacks* callbacks)
+    : callbacks_(callbacks) {}
+IndexedDBDatabaseCallbacksWrapper::~IndexedDBDatabaseCallbacksWrapper() {}
+
+void IndexedDBDatabaseCallbacksWrapper::OnForcedClose() {
+  if (!callbacks_)
+    return;
+  callbacks_->onForcedClose();
+  callbacks_.reset();
+}
+void IndexedDBDatabaseCallbacksWrapper::OnVersionChange(int64 old_version,
+                                                        int64 new_version) {
+  if (!callbacks_)
+    return;
+  callbacks_->onVersionChange(old_version, new_version);
+}
+
+void IndexedDBDatabaseCallbacksWrapper::OnAbort(
+    int64 transaction_id,
+    scoped_refptr<IndexedDBDatabaseError> error) {
+  if (!callbacks_)
+    return;
+  callbacks_->onAbort(
+      transaction_id,
+      WebKit::WebIDBDatabaseError(error->code(), error->message()));
+}
+void IndexedDBDatabaseCallbacksWrapper::OnComplete(int64 transaction_id) {
+  if (!callbacks_)
+    return;
+  callbacks_->onComplete(transaction_id);
+}
+
+}  // namespace content