Componentize chrome/common/sync_util

chrome/common/sync_util.h

-// Copyright 2015 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_COMMON_SYNC_UTIL_H_
-#define CHROME_COMMON_SYNC_UTIL_H_
-
-#include <string>
-
-class GURL;
-
-namespace base {
-class CommandLine;
-}
-
-namespace internal {
-// Default sync server URL. Visible for testing.
-extern const char* kSyncServerUrl;
-
-// Sync server URL for dev channel users. Visible for testing.
-extern const char* kSyncDevServerUrl;
-}
-
-GURL GetSyncServiceURL(const base::CommandLine& command_line);
-
-// Helper to construct a user agent string (ASCII) suitable for use by
-// the syncapi for any HTTP communication. This string is used by the sync
-// backend for classifying client types when calculating statistics.
-std::string MakeDesktopUserAgentForSync();
-std::string MakeUserAgentForSync(const std::string& system);
-
-#endif  // CHROME_COMMON_SYNC_UTIL_H_