It is time.

ui/base/clipboard/custom_data_helper.h

-// Copyright (c) 2012 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.
-//
-// Due to restrictions of most operating systems, we don't directly map each
-// type of custom data to a native data transfer type. Instead, we serialize
-// each key-value pair into the pickle as a pair of string objects, and then
-// write the binary data in the pickle to the native data transfer object.
-
-#ifndef UI_BASE_CLIPBOARD_CUSTOM_DATA_HELPER_H_
-#define UI_BASE_CLIPBOARD_CUSTOM_DATA_HELPER_H_
-
-#include <map>
-#include <vector>
-
-#include "base/strings/string16.h"
-#include "ui/base/ui_base_export.h"
-
-class Pickle;
-
-#if defined(OS_MACOSX)
-#ifdef __OBJC__
-@class NSString;
-#else
-class NSString;
-#endif
-#endif  // defined(OS_MACOSX)
-
-namespace ui {
-
-#if defined(OS_MACOSX) && !defined(USE_AURA)
-UI_BASE_EXPORT extern NSString* const kWebCustomDataPboardType;
-#elif !defined(OS_WIN) && defined(USE_AURA)
-UI_BASE_EXPORT extern const char kMimeTypeWebCustomData[];
-#endif
-
-UI_BASE_EXPORT void ReadCustomDataTypes(const void* data,
-                                        size_t data_length,
-                                        std::vector<base::string16>* types);
-UI_BASE_EXPORT void ReadCustomDataForType(const void* data,
-                                          size_t data_length,
-                                          const base::string16& type,
-                                          base::string16* result);
-UI_BASE_EXPORT void ReadCustomDataIntoMap(
-    const void* data,
-    size_t data_length,
-    std::map<base::string16, base::string16>* result);
-
-UI_BASE_EXPORT void WriteCustomDataToPickle(
-    const std::map<base::string16, base::string16>& data,
-    Pickle* pickle);
-
-}  // namespace ui
-
-#endif  // UI_BASE_CLIPBOARD_CLIPBOARD_H_