Download Service : Added leveldb proto layer

components/download/internal/proto_conversions.h

Index: components/download/internal/proto_conversions.h
diff --git a/components/download/internal/proto_conversions.h b/components/download/internal/proto_conversions.h
new file mode 100644
index 0000000000000000000000000000000000000000..4d2e4e53661e5585e58e02de3368634c1c609cee
--- /dev/null
+++ b/components/download/internal/proto_conversions.h
@@ -0,0 +1,64 @@
+// 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_DOWNLOAD_INTERNAL_PROTO_CONVERSIONS_H_
+#define COMPONENTS_DOWNLOAD_INTERNAL_PROTO_CONVERSIONS_H_
+
+#include "components/download/internal/entry.h"
+#include "components/download/internal/proto/entry.pb.h"
+#include "components/download/internal/proto/request.pb.h"
+#include "components/download/internal/proto/scheduling.pb.h"
+
+namespace download {
+
+class ProtoConversions {
+ public:
+  static Entry EntryFromProto(const protodb::Entry& proto);
+
+  static protodb::Entry EntryToProto(const Entry& entry);
+
+  static std::unique_ptr<std::vector<Entry>> EntryVectorFromProto(
+      std::unique_ptr<std::vector<protodb::Entry>> proto);
+
+  static std::unique_ptr<std::vector<protodb::Entry>> EntryVectorToProto(
+      std::unique_ptr<std::vector<Entry>> entries);
+
+ protected:
+  static protodb::Entry_State RequestStateToProto(Entry::State state);
+  static Entry::State RequestStateFromProto(protodb::Entry_State state);
+
+  static protodb::DownloadClient DownloadClientToProto(DownloadClient client);
+  static DownloadClient DownloadClientFromProto(protodb::DownloadClient client);
+
+  static SchedulingParams::NetworkRequirements NetworkRequirementsFromProto(
+      protodb::SchedulingParams_NetworkRequirements network_requirements);
+  static protodb::SchedulingParams_NetworkRequirements
+  NetworkRequirementsToProto(
+      SchedulingParams::NetworkRequirements network_requirements);
+
+  static SchedulingParams::BatteryRequirements BatteryRequirementsFromProto(
+      protodb::SchedulingParams_BatteryRequirements battery_requirements);
+  static protodb::SchedulingParams_BatteryRequirements
+  BatteryRequirementsToProto(
+      SchedulingParams::BatteryRequirements battery_requirements);
+
+  static SchedulingParams::Priority SchedulingPriorityFromProto(
+      protodb::SchedulingParams_Priority priority);
+  static protodb::SchedulingParams_Priority SchedulingPriorityToProto(
+      SchedulingParams::Priority priority);
+
+  static SchedulingParams SchedulingParamsFromProto(
+      const protodb::SchedulingParams& proto);
+  static void SchedulingParamsToProto(const SchedulingParams& scheduling_params,
+                                      protodb::SchedulingParams* proto);
+
+  static RequestParams RequestParamsFromProto(
+      const protodb::RequestParams& proto);
+  static void RequestParamsToProto(const RequestParams& request_params,
+                                   protodb::RequestParams* proto);
+};
+
+}  // namespace download
+
+#endif  // COMPONENTS_DOWNLOAD_INTERNAL_PROTO_CONVERSIONS_H_