bookmarks: Extract PerformBookmarkDrop() function out of bookmark_utils.h

chrome/browser/ui/views/bookmarks/bookmark_drag_drop.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_UI_VIEWS_BOOKMARKS_BOOKMARK_DRAG_DROP_H_
-#define CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_DRAG_DROP_H_
-
-class BookmarkNode;
-struct BookmarkNodeData;
-class Profile;
-
-namespace content {
-class BrowserContext;
-}
-
-namespace ui {
-class DropTargetEvent;
-}
-
-namespace chrome {
-
-// Returns the drag operations for the specified node.
-int GetBookmarkDragOperation(content::BrowserContext* browser_context,
-                             const BookmarkNode* node);
-
-// Calculates the drop operation given |source_operations| and the ideal
-// set of drop operations (|operations|). This prefers the following ordering:
-// COPY, LINK then MOVE.
-int GetPreferredBookmarkDropOperation(int source_operations, int operations);
-
-// Returns the preferred drop operation on a bookmark menu/bar.
-// |parent| is the parent node the drop is to occur on and |index| the index the
-// drop is over.
-int GetBookmarkDropOperation(Profile* profile,
-                             const ui::DropTargetEvent& event,
-                             const BookmarkNodeData& data,
-                             const BookmarkNode* parent,
-                             int index);
-
-// Returns true if the bookmark data can be dropped on |drop_parent| at
-// |index|. A drop from a separate profile is always allowed, where as
-// a drop from the same profile is only allowed if none of the nodes in
-// |data| are an ancestor of |drop_parent| and one of the nodes isn't already
-// a child of |drop_parent| at |index|.
-bool IsValidBookmarkDropLocation(Profile* profile,
-                                 const BookmarkNodeData& data,
-                                 const BookmarkNode* drop_parent,
-                                 int index);
-
-}  // namespace chrome
-
-#endif  // CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_DRAG_DROP_H_