Move PathExists to base namespace.

chrome/browser/extensions/api/storage/storage_schema_manifest_handler.cc

 // Copyright 2013 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/extensions/api/storage/storage_schema_manifest_handler.h"
 
 #include <string>
 #include <vector>
 
 #include "base/file_util.h"
@@ skipping 28 matching lines @@
   }
   std::string path;
   extension->manifest()->GetString(kStorageManagedSchema, &path);
   base::FilePath file = base::FilePath::FromUTF8Unsafe(path);
   if (file.IsAbsolute() || file.ReferencesParent()) {
     *error = base::StringPrintf("%s must be a relative path without ..",
                                 kStorageManagedSchema);
     return scoped_ptr<policy::PolicySchema>();
   }
   file = extension->path().AppendASCII(path);
-  if (!file_util::PathExists(file)) {
+  if (!base::PathExists(file)) {
     *error =
         base::StringPrintf("File does not exist: %s", file.value().c_str());
     return scoped_ptr<policy::PolicySchema>();
   }
   std::string content;
   if (!file_util::ReadFileToString(file, &content)) {
     *error = base::StringPrintf("Can't read %s", file.value().c_str());
     return scoped_ptr<policy::PolicySchema>();
   }
   return policy::PolicySchema::Parse(content, error);
@@ skipping 15 matching lines @@
     std::string* error,
     std::vector<InstallWarning>* warnings) const {
   return !!GetSchema(extension, error);
 }
 
 const std::vector<std::string> StorageSchemaManifestHandler::Keys() const {
   return SingleKey(kStorageManagedSchema);
 }
 
 }  // namespace extensions