Move file_util::Delete to the base namespace

chrome/common/extensions/extension_file_util_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.
 
 #include "chrome/common/extensions/extension_file_util.h"
 
 #include "base/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/path_service.h"
@@ skipping 321 matching lines @@
     base::FilePath expected_path;
     if (test_cases[i].expected_path)
       expected_path = root_path.Append(FILE_PATH_LITERAL("apiname")).Append(
           test_cases[i].expected_path);
     base::FilePath actual_path =
         extension_file_util::ExtensionResourceURLToFilePath(url, root_path);
     EXPECT_EQ(expected_path.value(), actual_path.value()) <<
       " For the path " << url;
   }
   // Remove temp files.
-  ASSERT_TRUE(file_util::Delete(root_path, true));
+  ASSERT_TRUE(base::Delete(root_path, true));
 }
 
 static scoped_refptr<Extension> LoadExtensionManifest(
     base::DictionaryValue* manifest,
     const base::FilePath& manifest_dir,
     Manifest::Location location,
     int extra_flags,
     std::string* error) {
   scoped_refptr<Extension> extension = Extension::Create(
       manifest_dir, location, *manifest, extra_flags, error);
@@ skipping 214 matching lines @@
   scoped_refptr<Extension> extension3(extension_file_util::LoadExtension(
       ext_dir, Manifest::UNPACKED, Extension::NO_FLAGS, &error));
   EXPECT_TRUE(extension3.get() == NULL);
   EXPECT_STREQ("Could not load icon 'icon.png' for page action.",
                error.c_str());
 }
 
 // TODO(aa): More tests as motivation allows. Maybe steal some from
 // ExtensionService? Many of them could probably be tested here without the
 // MessageLoop shenanigans.