Move PathExists to base namespace.

chrome/browser/nacl_host/nacl_file_host.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/browser/nacl_host/nacl_file_host.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/path_service.h"
@@ skipping 90 matching lines @@
 void DoOpenPnaclFile(
     scoped_refptr<NaClHostMessageFilter> nacl_host_message_filter,
     const std::string& filename,
     IPC::Message* reply_msg) {
   DCHECK(BrowserThread::GetBlockingPool()->RunsTasksOnCurrentThread());
   base::FilePath full_filepath;
 
   // PNaCl must be installed.
   base::FilePath pnacl_dir;
   if (!NaClBrowser::GetDelegate()->GetPnaclDirectory(&pnacl_dir) ||
-      !file_util::PathExists(pnacl_dir)) {
+      !base::PathExists(pnacl_dir)) {
     BrowserThread::PostTask(
         BrowserThread::UI, FROM_HERE,
         base::Bind(&TryInstallPnacl,
                    nacl_host_message_filter,
                    filename,
                    reply_msg));
     return;
   }
 
   // Do some validation.
@@ skipping 274 matching lines @@
       base::Bind(
           &DoOpenNaClExecutableOnThreadPool,
           nacl_host_message_filter,
           extension_info_map,
           file_url, reply_msg))) {
     NotifyRendererOfError(nacl_host_message_filter.get(), reply_msg);
   }
 }
 
 }  // namespace nacl_file_host