Adds support for autoscrolling on drag to bookmark tree/table....

chrome/views/view_constants.h

+// 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_VIEW_CONSTANTS_H_
+#define CHROME_VIEWS_VIEW_CONSTANTS_H_
+
+namespace views {
+
+// Size (width or height) within which the user can hold the mouse and the
+// view should scroll.
+extern const int kAutoscrollSize;
+
+// Time in milliseconds to autoscroll by a row. This is used during drag and
+// drop.
+extern const int kAutoscrollRowTimerMS;
+
+// Used to determine whether a drop is on an item or before/after it. If a drop
+// occurs kDropBetweenPixels from the top/bottom it is considered before/after
+// the item, otherwise it is on the item.
+extern const int kDropBetweenPixels;
+
+}  // namespace views
+
+#endif  // CHROME_VIEWS_VIEW_CONSTANTS_H_