Delete CopyRecursiveDirNoCache from test_file_util.

chrome/test/automation/proxy_launcher.cc

Index: chrome/test/automation/proxy_launcher.cc
diff --git a/chrome/test/automation/proxy_launcher.cc b/chrome/test/automation/proxy_launcher.cc
index 98ba947f1d3ee46a37973075255e28857e0f7c45..2934a6bc587543a054ef001ce2c07df2393cde73 100644
--- a/chrome/test/automation/proxy_launcher.cc
+++ b/chrome/test/automation/proxy_launcher.cc
@@ -186,8 +186,8 @@ bool ProxyLauncher::LaunchBrowser(const LaunchState& state) {
 
   if (!state.template_user_data.empty()) {
     // Recursively copy the template directory to the user_data_dir.
-    if (!file_util::CopyRecursiveDirNoCache(
-            state.template_user_data, user_data_dir())) {
+    if (!file_util::CopyDirectory(state.template_user_data, user_data_dir(),
+                                  true)) {
       LOG(ERROR) << "Failed to copy user data directory template.";
       return false;
     }