[BlobStorage] BlobMemoryController & tests

storage/common/blob_storage/blob_storage_constants.cc

+// Copyright 2016 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 "storage/common/blob_storage/blob_storage_constants.h"
+
+#include "base/logging.h"
+
+namespace storage {
+
+bool BlobStatusIsError(BlobStatus status) {
+  return static_cast<int>(status) <= static_cast<int>(BlobStatus::LAST_ERROR);
+}
+
+bool BlobStatusIsBadIPC(BlobStatus status) {
+  return status == BlobStatus::ERR_INVALID_CONSTRUCTION_ARGUMENTS;
+}
+
+}  // namespace storage