Move directory creation functions to base namespace.

content/browser/download/download_file_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 "base/file_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/test/test_file_util.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/byte_stream.h"
@@ skipping 443 matching lines @@
 }
 
 // Test to make sure we get the proper error on failure.
 TEST_F(DownloadFileTest, RenameError) {
   ASSERT_TRUE(CreateDownloadFile(0, true));
   base::FilePath initial_path(download_file_->FullPath());
 
   // Create a subdirectory.
   base::FilePath tempdir(
       initial_path.DirName().Append(FILE_PATH_LITERAL("tempdir")));
-  ASSERT_TRUE(file_util::CreateDirectory(tempdir));
+  ASSERT_TRUE(base::CreateDirectory(tempdir));
   base::FilePath target_path(tempdir.Append(initial_path.BaseName()));
 
   // Targets
   base::FilePath target_path_suffixed(
       target_path.InsertBeforeExtensionASCII(" (1)"));
   ASSERT_FALSE(base::PathExists(target_path));
   ASSERT_FALSE(base::PathExists(target_path_suffixed));
 
   // Make the directory unwritable and try to rename within it.
   {
@@ skipping 121 matching lines @@
 
   EXPECT_EQ(static_cast<int64>(strlen(kTestData1) + strlen(kTestData2)),
             bytes_);
   EXPECT_EQ(download_file_->GetHashState(), hash_state_);
 
   FinishStream(DOWNLOAD_INTERRUPT_REASON_NONE, true);
   DestroyDownloadFile(0);
 }
 
 }  // namespace content