Add more string_util functions to base namespace.

third_party/zlib/google/zip.cc

 // 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.
 
 #include "third_party/zlib/google/zip.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 38 matching lines @@
   return true;
 }
 
 bool AddEntryToZip(zipFile zip_file, const base::FilePath& path,
                    const base::FilePath& root_path) {
   base::FilePath relative_path;
   bool result = root_path.AppendRelativePath(path, &relative_path);
   DCHECK(result);
   std::string str_path = relative_path.AsUTF8Unsafe();
 #if defined(OS_WIN)
-  ReplaceSubstringsAfterOffset(&str_path, 0u, "\\", "/");
+  base::ReplaceSubstringsAfterOffset(&str_path, 0u, "\\", "/");
 #endif
 
   bool is_directory = base::DirectoryExists(path);
   if (is_directory)
     str_path += "/";
 
   zip_fileinfo file_info = zip::internal::GetFileInfoForZipping(path);
   if (!zip::internal::ZipOpenNewFileInZip(zip_file, str_path, &file_info))
     return false;
 
@@ skipping 125 matching lines @@
   if (ZIP_OK != zipClose(zip_file, NULL)) {
     DLOG(ERROR) << "Error closing zip file for fd " << dest_fd;
     success = false;
   }
 
   return success;
 }
 #endif  // defined(OS_POSIX)
 
 }  // namespace zip