content: Split web_drag_dest_gtk.cc into chrome/ and content/ parts.

ui/base/dragdrop/bookmark_format.cc

+// 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.
+
+#include "ui/base/dragdrop/bookmark_format.h"
+
+namespace ui {
+
+const char kClipboardFormatString[] = "chromium/x-bookmark-entries";
+
+#if defined(TOOLKIT_VIEWS)
+ui::OSExchangeData::CustomFormat GetBookmarkCustomFormat() {
+  static ui::OSExchangeData::CustomFormat format;
+  static bool format_valid = false;
+
+  if (!format_valid) {
+    format_valid = true;
+    format = ui::OSExchangeData::RegisterCustomFormat(kClipboardFormatString);
+  }
+  return format;
+}
+#endif
+
+}  // namespace ui