Revert 239280 "Move more file_util functions to base namespace."

trunk/src/chrome/browser/component_updater/component_unpacker.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/component_updater/component_unpacker.h"
 
 #include <string>
 #include <vector>
 
 #include "base/file_util.h"
@@ skipping 104 matching lines @@
                                      ComponentPatcher* patcher,
                                      ComponentInstaller* installer)
     : error_(kNone),
       extended_error_(0) {
   if (pk_hash.empty() || path.empty()) {
     error_ = kInvalidParams;
     return;
   }
   // First, validate the CRX header and signature. As of today
   // this is SHA1 with RSA 1024.
-  ScopedStdioHandle file(base::OpenFile(path, "rb"));
+  ScopedStdioHandle file(file_util::OpenFile(path, "rb"));
   if (!file.get()) {
     error_ = kInvalidFile;
     return;
   }
   CRXValidator validator(file.get());
   if (!validator.valid()) {
     error_ = kInvalidFile;
     return;
   }
   file.Close();
@@ skipping 65 matching lines @@
     return;
   }
   // Installation successful. The directory is not our concern now.
   unpack_path_.clear();
 }
 
 ComponentUnpacker::~ComponentUnpacker() {
   if (!unpack_path_.empty())
     base::DeleteFile(unpack_path_, true);
 }