Move PathExists to base namespace.

content/shell/shell_browser_main.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 "content/shell/shell_browser_main.h"
 
 #include <iostream>
 
 #include "base/command_line.h"
 #include "base/file_util.h"
@@ skipping 55 matching lines @@
   if (!(test_url.is_valid() && test_url.has_scheme())) {
     // We're outside of the message loop here, and this is a test.
     base::ThreadRestrictions::ScopedAllowIO allow_io;
 #if defined(OS_WIN)
     std::wstring wide_path_or_url =
         base::SysNativeMBToWide(path_or_url);
     base::FilePath local_file(wide_path_or_url);
 #else
     base::FilePath local_file(path_or_url);
 #endif
-    if (!file_util::PathExists(local_file)) {
+    if (!base::PathExists(local_file)) {
       local_file = content::GetWebKitRootDirFilePath()
           .Append(FILE_PATH_LITERAL("LayoutTests")).Append(local_file);
     }
     test_url = net::FilePathToFileURL(base::MakeAbsoluteFilePath(local_file));
   }
   base::FilePath local_path;
   if (current_working_directory) {
     // We're outside of the message loop here, and this is a test.
     base::ThreadRestrictions::ScopedAllowIO allow_io;
     if (net::FileURLToFilePath(test_url, &local_path))
@@ skipping 118 matching lines @@
 
 #if !defined(OS_ANDROID)
   if (!layout_test_mode)
     exit_code = main_runner->Run();
 
   main_runner->Shutdown();
 #endif
 
   return exit_code;
 }