Move file_util::Delete to the base namespace

chrome/test/automation/proxy_launcher.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 "chrome/test/automation/proxy_launcher.h"
 
 #include <vector>
 
 #include "base/environment.h"
 #include "base/file_util.h"
@@ skipping 541 matching lines @@
   proxy->InitializeChannel(channel_id_, true);
   return proxy;
 }
 
 bool NamedProxyLauncher::InitializeConnection(const LaunchState& state,
                                               bool wait_for_initial_loads) {
   if (launch_browser_) {
 #if defined(OS_POSIX)
     // Because we are waiting on the existence of the testing file below,
     // make sure there isn't one already there before browser launch.
-    if (!file_util::Delete(base::FilePath(channel_id_), false)) {
+    if (!base::Delete(base::FilePath(channel_id_), false)) {
       LOG(ERROR) << "Failed to delete " << channel_id_;
       return false;
     }
 #endif
 
     if (!LaunchBrowser(state)) {
       LOG(ERROR) << "Failed to LaunchBrowser";
       return false;
     }
   }
@@ skipping 55 matching lines @@
   return LaunchBrowserAndServer(state, wait_for_initial_loads);
 }
 
 void AnonymousProxyLauncher::TerminateConnection() {
   CloseBrowserAndServer();
 }
 
 std::string AnonymousProxyLauncher::PrefixedChannelID() const {
   return channel_id_;
 }