Implement support for importing favorites from Edge on Windows 10.

chrome/utility/importer/edge_importer_win.h

+// Copyright 2015 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 CHROME_UTILITY_IMPORTER_EDGE_IMPORTER_WIN_H_
+#define CHROME_UTILITY_IMPORTER_EDGE_IMPORTER_WIN_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/files/file_path.h"
+#include "chrome/utility/importer/importer.h"
+#include "components/favicon_base/favicon_usage_data.h"
+
+struct ImportedBookmarkEntry;
+
+class EdgeImporter : public Importer {
+ public:
+  EdgeImporter();
+
+  // Importer:
+  void StartImport(const importer::SourceProfile& source_profile,
+                   uint16 items,
+                   ImporterBridge* bridge) override;
+
+ private:
+  ~EdgeImporter() override;
+
+  void ImportFavorites();
+  // This function will read the favorites from the spartan database storing
+  // the bookmark items in |bookmarks| and favicon information in |favicons|.
+  void ParseFavoritesDatabase(std::vector<ImportedBookmarkEntry>* bookmarks,
+                              favicon_base::FaviconUsageDataList* favicons);
+
+  // Edge does not have source path. It's used in unit tests only for providing
+  // a fake source for the spartan database location.
+  base::FilePath source_path_;
+
+  DISALLOW_COPY_AND_ASSIGN(EdgeImporter);
+};
+
+#endif  // CHROME_UTILITY_IMPORTER_EDGE_IMPORTER_WIN_H_