offline_items_collection : Added helper class to determine progress

components/offline_items_collection/core/offline_item_progress_unit.h

+// Copyright 2017 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.
+
+#ifndef COMPONENTS_OFFLINE_ITEMS_COLLECTION_CORE_OFFLINE_ITEM_PROGRESS_UNIT_H_
+#define COMPONENTS_OFFLINE_ITEMS_COLLECTION_CORE_OFFLINE_ITEM_PROGRESS_UNIT_H_
+
+namespace offline_items_collection {
+
+// A Java counterpart will be generated for this enum.
+// GENERATED_JAVA_ENUM_PACKAGE: org.chromium.components.offline_items_collection
+enum OfflineItemProgressUnit {

[David Trainor- moved to gerrit, 2017/05/03 22:06:32]

Does this have to be in a separate file?  Also, we should either prefix the
values or make this an "enum class".  I don't know if "enum class" works with
the JNI generator though so try that out first IMO :).

[shaktisahu, 2017/05/05 02:09:37]

Done.
Enum class works fine with JNI generator. We just have to use static_cast<int>
before passing to java.

+  BYTES,
+  FILES,
+};
+
+}  // namespace offline_items_collection
+
+#endif  // COMPONENTS_OFFLINE_ITEMS_COLLECTION_CORE_OFFLINE_ITEM_PROGRESS_UNIT_H_