Move PathExists to base namespace.

chrome/browser/ui/webui/nacl_ui.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/ui/webui/nacl_ui.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 144 matching lines @@
         base::Bind(&NaClDomHandlerProxy::ValidatePnaclPath, this));
     return;
   }
 
   base::FilePath pnacl_path;
   bool got_path = PathService::Get(chrome::DIR_PNACL_COMPONENT, &pnacl_path);
   // The PathService may return an empty string if PNaCl is not yet installed.
   // However, do not trust that the path returned by the PathService exists.
   // Check for existence here.
   ValidatePnaclPathCallback(
-    got_path && !pnacl_path.empty() && file_util::PathExists(pnacl_path));
+    got_path && !pnacl_path.empty() && base::PathExists(pnacl_path));
 }
 
 void NaClDomHandlerProxy::ValidatePnaclPathCallback(bool is_valid) {
   if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
     BrowserThread::PostTask(
         BrowserThread::UI, FROM_HERE,
         base::Bind(&NaClDomHandlerProxy::ValidatePnaclPathCallback,
         this, is_valid));
     return;
   }
@@ skipping 200 matching lines @@
 
 NaClUI::NaClUI(content::WebUI* web_ui) : WebUIController(web_ui) {
   content::RecordAction(UserMetricsAction("ViewAboutNaCl"));
 
   web_ui->AddMessageHandler(new NaClDomHandler());
 
   // Set up the about:nacl source.
   Profile* profile = Profile::FromWebUI(web_ui);
   content::WebUIDataSource::Add(profile, CreateNaClUIHTMLSource());
 }