Move file_util::Delete to the base namespace

chrome/browser/extensions/api/system_info_storage/storage_info_provider_linux_unittest.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.
 
 // StorageInfoProviderLinux unit tests.
 
 #include "chrome/browser/extensions/api/system_info_storage/storage_info_provider_linux.h"
 
 #include <map>
 
@@ skipping 91 matching lines @@
     // Create and set up a temp file for mtab data.
     ASSERT_TRUE(file_util::CreateTemporaryFile(&mtab_file_));
     int bytes = file_util::WriteFile(mtab_file_, mtab_test_data,
                                      strlen(mtab_test_data));
     ASSERT_EQ(static_cast<int>(strlen(mtab_test_data)), bytes);
     test_storage_notifications_.reset(new TestStorageMonitor);
     storage_info_provider_ = new StorageInfoProviderLinuxWrapper(mtab_file_);
   }
 
   virtual void TearDown() OVERRIDE {
-    file_util::Delete(mtab_file_, false);
+    base::Delete(mtab_file_, false);
   }
 
   scoped_refptr<StorageInfoProviderLinuxWrapper> storage_info_provider_;
 
  private:
   base::FilePath mtab_file_;
   scoped_ptr<TestStorageMonitor> test_storage_notifications_;
 };
 
 TEST_F(StorageInfoProviderLinuxTest, QueryInfo) {
@@ skipping 17 matching lines @@
 TEST_F(StorageInfoProviderLinuxTest, QueryInfoFailed) {
   storage_info_provider_ =
       new StorageInfoProviderLinuxWrapper(base::FilePath("/invalid/file/path"));
   StorageInfo info;
   ASSERT_FALSE(QueryInfo(&info));
   EXPECT_EQ(0u, info.size());
 }
 
 }  // namespace extensions