Cleanup VersionInfo after componentization.

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 chrome {
-class VersionInfo;
-}
-
 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(
-    const chrome::VersionInfo& version_info);
-std::string MakeUserAgentForSync(const chrome::VersionInfo& version_info,
-                                 const std::string& system);
+std::string MakeDesktopUserAgentForSync();
+std::string MakeUserAgentForSync(const std::string& system);
 
 #endif  // CHROME_COMMON_SYNC_UTIL_H_