Extract BookmarksFileImporter from Firefox2Importer.

chrome/browser/importer/bookmarks_file_importer.h

+// Copyright 2013 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_BROWSER_IMPORTER_BOOKMARKS_FILE_IMPORTER_H_
+#define CHROME_BROWSER_IMPORTER_BOOKMARKS_FILE_IMPORTER_H_
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "chrome/browser/importer/importer.h"
+
+// Importer for bookmarks files.
+class BookmarksFileImporter : public Importer {
+ public:
+  BookmarksFileImporter();
+
+  virtual void StartImport(const importer::SourceProfile& source_profile,
+                           uint16 items,
+                           ImporterBridge* bridge) OVERRIDE;
+
+ private:
+  virtual ~BookmarksFileImporter();
+
+  DISALLOW_COPY_AND_ASSIGN(BookmarksFileImporter);
+};
+
+#endif  // CHROME_BROWSER_IMPORTER_BOOKMARKS_FILE_IMPORTER_H_