Move PathExists to base namespace.

win8/delegate_execute/chrome_util.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 "win8/delegate_execute/chrome_util.h"
 
 #include <windows.h>
 #include <atlbase.h>
 #include <shlobj.h>
 
@@ skipping 63 matching lines @@
     AtlTrace("%hs. Failed to open browser event; error %u.\n", __FUNCTION__,
              last_error);
   }
   return false;
 }
 
 // Returns true if the file new_chrome.exe exists in the same directory as
 // |chrome_exe|.
 bool NewChromeExeExists(const base::FilePath& chrome_exe) {
   base::FilePath new_chrome_exe(chrome_exe.DirName().Append(kNewChromeExe));
-  return file_util::PathExists(new_chrome_exe);
+  return base::PathExists(new_chrome_exe);
 }
 
 bool GetUpdateCommand(bool is_per_user, string16* update_command) {
   const HKEY root = is_per_user ? HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE;
   base::win::RegKey key(root, kRegPathChromeClient, KEY_QUERY_VALUE);
 
   return key.ReadValue(kRenameCommandValue, update_command) == ERROR_SUCCESS;
 }
 
 #endif  // GOOGLE_CHROME_BUILD
@@ skipping 164 matching lines @@
   string16 suffix;
   if (IsPerUserInstall(chrome_exe) &&
       !GetUserSpecificRegistrySuffix(&suffix)) {
     AtlTrace("%hs. GetUserSpecificRegistrySuffix failed.\n",
               __FUNCTION__);
   }
   return app_id.append(suffix);
 }
 
 }  // delegate_execute