Move more dnd related files to ui/base

ui/base/dragdrop/gtk_dnd_util.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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 APP_GTK_DND_UTIL_H_
-#define APP_GTK_DND_UTIL_H_
+#ifndef UI_BASE_DRAGDROP_GTK_DND_UTIL_H_
+#define UI_BASE_DRAGDROP_GTK_DND_UTIL_H_
 #pragma once
 
 #include <gtk/gtk.h>
 
 #include <vector>
 
 #include "base/string16.h"
 
 class GURL;
 
-namespace gtk_dnd_util {
+namespace ui {
 
 // Registry of all internal int codes for drag and drop.
 enum {
   // Intra-application types.
   CHROME_TAB = 1 << 0,
   CHROME_BOOKMARK_ITEM = 1 << 1,
   CHROME_WEBDROP_FILE_CONTENTS = 1 << 2,
   CHROME_NAMED_URL = 1 << 3,
 
   // Standard types.
@@ skipping 48 matching lines @@
 
 // Extracts data of type TEXT_URI_LIST from |selection_data| into |urls|.
 bool ExtractURIList(GtkSelectionData* selection_data,
                     std::vector<GURL>* urls);
 
 // Extracts a Netscape URL (url\ntitle) from |selection_data|.
 bool ExtractNetscapeURL(GtkSelectionData* selection_data,
                         GURL* url,
                         string16* title);
 
-}  // namespace gtk_dnd_util
+}  // namespace ui
 
-#endif  // APP_GTK_DND_UTIL_H_
+#endif  // UI_BASE_DRAGDROP_GTK_DND_UTIL_H_