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

trunk/src/chrome/browser/chromeos/policy/enterprise_install_attributes.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/chromeos/policy/enterprise_install_attributes.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/file_util.h"
@@ skipping 89 matching lines @@
 EnterpriseInstallAttributes::~EnterpriseInstallAttributes() {}
 
 void EnterpriseInstallAttributes::ReadCacheFile(
     const base::FilePath& cache_file) {
   if (device_locked_ || !base::PathExists(cache_file))
     return;
 
   device_locked_ = true;
 
   char buf[16384];
-  int len = base::ReadFile(cache_file, buf, sizeof(buf));
+  int len = file_util::ReadFile(cache_file, buf, sizeof(buf));
   if (len == -1 || len >= static_cast<int>(sizeof(buf))) {
     PLOG(ERROR) << "Failed to read " << cache_file.value();
     return;
   }
 
   cryptohome::SerializedInstallAttributes install_attrs_proto;
   if (!install_attrs_proto.ParseFromArray(buf, len)) {
     LOG(ERROR) << "Failed to parse install attributes cache";
     return;
   }
@@ skipping 245 matching lines @@
                         &consumer_kiosk_enabled) &&
              consumer_kiosk_enabled == "true") {
     registration_mode_ = DEVICE_MODE_CONSUMER_KIOSK;
   } else if (enterprise_user.empty() && enterprise_owned != "true") {
     // |registration_user_| is empty on consumer devices.
     registration_mode_ = DEVICE_MODE_CONSUMER;
   }
 }
 
 }  // namespace policy