Move directory creation functions to base namespace.

chrome/test/chromedriver/chrome/zip_reader.cc

Index: chrome/test/chromedriver/chrome/zip_reader.cc
diff --git a/chrome/test/chromedriver/chrome/zip_reader.cc b/chrome/test/chromedriver/chrome/zip_reader.cc
index 25aee0cf1d3318aad9c8e5e69946931e2c2abbf4..218c8d7e77d57f0a297541b08d2f85695ae0b4e8 100644
--- a/chrome/test/chromedriver/chrome/zip_reader.cc
+++ b/chrome/test/chromedriver/chrome/zip_reader.cc
@@ -192,7 +192,7 @@ bool ZipReader::ExtractCurrentEntryToFilePath(
 
   // If this is a directory, just create it and return.
   if (current_entry_info()->is_directory())
-    return file_util::CreateDirectory(output_file_path);
+    return base::CreateDirectory(output_file_path);
 
   const int open_result = unzOpenCurrentFile(zip_file_);
   if (open_result != UNZ_OK)
@@ -201,7 +201,7 @@ bool ZipReader::ExtractCurrentEntryToFilePath(
   // We can't rely on parent directory entries being specified in the
   // zip, so we make sure they are created.
   base::FilePath output_dir_path = output_file_path.DirName();
-  if (!file_util::CreateDirectory(output_dir_path))
+  if (!base::CreateDirectory(output_dir_path))
     return false;
 
   net::FileStream stream(NULL);