base: Remove using:: declaration from version.h header.

components/update_client/test_installer.cc

 // Copyright 2013 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 "components/update_client/test_installer.h"
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
@@ skipping 44 matching lines @@
 }
 
 VersionedTestInstaller::~VersionedTestInstaller() {
   base::DeleteFile(install_directory_, true);
 }
 
 bool VersionedTestInstaller::Install(const base::DictionaryValue& manifest,
                                      const base::FilePath& unpack_path) {
   std::string version_string;
   manifest.GetStringASCII("version", &version_string);
-  Version version(version_string.c_str());
+  base::Version version(version_string);
 
   base::FilePath path;
   path = install_directory_.AppendASCII(version.GetString());
   base::CreateDirectory(path.DirName());
   if (!base::Move(unpack_path, path))
     return false;
   current_version_ = version;
   ++install_count_;
   return true;
 }
 
 bool VersionedTestInstaller::GetInstalledFile(const std::string& file,
                                               base::FilePath* installed_file) {
   base::FilePath path;
   path = install_directory_.AppendASCII(current_version_.GetString());
   *installed_file = path.Append(base::FilePath::FromUTF8Unsafe(file));
   return true;
 }
 
 }  // namespace update_client