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

chrome/browser/ui/bookmarks/bookmark_drag_drop.cc

+// 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.
+
+#include "chrome/browser/ui/bookmarks/bookmark_drag_drop.h"
+
+#include "chrome/browser/bookmarks/bookmark_model.h"
+#include "chrome/browser/bookmarks/bookmark_model_factory.h"
+#include "chrome/browser/bookmarks/bookmark_node_data.h"
+#include "chrome/browser/bookmarks/bookmark_utils.h"
+#include "ui/base/dragdrop/drag_drop_types.h"
+
+namespace chrome {
+
+int DropBookmarks(Profile* profile,
+                  const BookmarkNodeData& data,
+                  const BookmarkNode* parent_node,
+                  int index) {
+  BookmarkModel* model = BookmarkModelFactory::GetForProfile(profile);
+  if (data.IsFromProfile(profile)) {
+    const std::vector<const BookmarkNode*> dragged_nodes =
+        data.GetNodes(profile);
+    if (!dragged_nodes.empty()) {
+      // Drag from same profile. Move nodes.
+      for (size_t i = 0; i < dragged_nodes.size(); ++i) {
+        model->Move(dragged_nodes[i], parent_node, index);
+        index = parent_node->GetIndexOf(dragged_nodes[i]) + 1;
+      }
+      return ui::DragDropTypes::DRAG_MOVE;
+    }
+    return ui::DragDropTypes::DRAG_NONE;
+  }
+  // Dropping a folder from different profile. Always accept.
+  bookmark_utils::CloneBookmarkNode(model, data.elements, parent_node, index);
+  return ui::DragDropTypes::DRAG_COPY;
+}
+
+}  // namespace chrome