Add support for OfflinePagesDownloadBridge.

components/offline_pages/downloads/download_ui_item.h

Index: components/offline_pages/downloads/download_ui_item.h
diff --git a/components/offline_pages/downloads/download_ui_item.h b/components/offline_pages/downloads/download_ui_item.h
new file mode 100644
index 0000000000000000000000000000000000000000..bc4b76aa2b4be7f40ed29c4c7ab374e5d3379785
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+++ b/components/offline_pages/downloads/download_ui_item.h
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+// 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.
+
+#ifndef COMPONENTS_OFFLINE_PAGES_DOWNLOADS_DOWNLOAD_UI_ITEM_H_
+#define COMPONENTS_OFFLINE_PAGES_DOWNLOADS_DOWNLOAD_UI_ITEM_H_
+
+#include <stdint.h>
+
+#include <string>
+
+#include "base/files/file_path.h"
+#include "base/time/time.h"
+#include "components/offline_pages/offline_page_item.h"
+#include "url/gurl.h"
+
+namespace offline_pages {
+
+struct DownloadUIItem {
+ public:
+  DownloadUIItem();
+  explicit DownloadUIItem(const OfflinePageItem& page);
+  ~DownloadUIItem();
+
+  // Unique id.
+  std::string guid;
+
+  // The URL of the captured page.
+  GURL url;
+
+  // The file path to the archive with a local copy of the page.
+  base::FilePath target_path;
+
+  // The time when the offline archive was created.
+  base::Time start_time;
+
+  // The size of the offline copy.
+  int64_t total_bytes;
+};
+
+}  // namespace offline_pages
+
+#endif  // COMPONENTS_OFFLINE_PAGES_DOWNLOADS_DOWNLOAD_UI_ITEM_H_