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diff --git a/chrome/views/controls/table/group_table_view.h b/chrome/views/controls/table/group_table_view.h
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+++ b/chrome/views/controls/table/group_table_view.h
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+// Copyright (c) 2006-2008 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_VIEWS_CONTROLS_TABLE_GROUP_TABLE_VIEW_H_
+#define CHROME_VIEWS_CONTROLS_TABLE_GROUP_TABLE_VIEW_H_
+
+#include "base/task.h"
+#include "chrome/views/controls/table/table_view.h"
+
+// The GroupTableView adds grouping to the TableView class.
+// It allows to have groups of rows that act as a single row from the selection
+// perspective. Groups are visually separated by a horizontal line.
+
+namespace views {
+
+struct GroupRange {
+  int start;
+  int length;
+};
+
+// The model driving the GroupTableView.
+class GroupTableModel : public TableModel {
+ public:
+  // Populates the passed range with the first row/last row (included)
+  // that this item belongs to.
+  virtual void GetGroupRangeForItem(int item, GroupRange* range) = 0;
+};
+
+class GroupTableView : public TableView {
+ public:
+   // The view class name.
+   static const char kViewClassName[];
+
+  GroupTableView(GroupTableModel* model,
+                 const std::vector<TableColumn>& columns,
+                 TableTypes table_type, bool single_selection,
+                 bool resizable_columns, bool autosize_columns);
+  virtual ~GroupTableView();
+
+  virtual std::string GetClassName() const;
+
+ protected:
+  // Notification from the ListView that the selected state of an item has
+  // changed.
+  void OnSelectedStateChanged();
+
+  // Extra-painting required to draw the separator line between groups.
+  virtual bool ImplementPostPaint() { return true; }
+  virtual void PostPaint(int model_row, int column, bool selected,
+                         const CRect& bounds, HDC device_context);
+
+  // In order to make keyboard navigation possible (using the Up and Down
+  // keys), we must take action when an arrow key is pressed. The reason we
+  // need to process this message has to do with the manner in which the focus
+  // needs to be set on a group item when a group is selected.
+  virtual void OnKeyDown(unsigned short virtual_keycode);
+
+  // Overriden to make sure rows in the same group stay grouped together.
+  virtual int CompareRows(int model_row1, int model_row2);
+
+  // Updates model_index_to_range_start_map_ from the model.
+  virtual void PrepareForSort();
+
+ private:
+  // Make the selection of group consistent.
+  void SyncSelection();
+
+  GroupTableModel* model_;
+
+  // A factory to make the selection consistent among groups.
+  ScopedRunnableMethodFactory<GroupTableView> sync_selection_factory_;
+
+  // Maps from model row to start of group.
+  std::map<int,int> model_index_to_range_start_map_;
+
+  DISALLOW_COPY_AND_ASSIGN(GroupTableView);
+};
+
+}  // namespace views
+
+#endif  // CHROME_VIEWS_CONTROLS_TABLE_GROUP_TABLE_VIEW_H_