Move temp file functions to base namespace.

chrome/browser/chromeos/drive/file_system/download_operation_unittest.cc

 // Copyright 2013 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/drive/file_system/download_operation.h"
 
 #include "base/file_util.h"
 #include "base/task_runner_util.h"
 #include "chrome/browser/chromeos/drive/fake_free_disk_space_getter.h"
 #include "chrome/browser/chromeos/drive/file_cache.h"
@@ skipping 179 matching lines @@
       google_apis::GetContentCallback(),
       google_apis::test_util::CreateCopyResultCallback(
           &error, &file_path, &entry));
   test_util::RunBlockingPoolTask();
 
   EXPECT_EQ(FILE_ERROR_NO_LOCAL_SPACE, error);
 }
 
 TEST_F(DownloadOperationTest, EnsureFileDownloadedByPath_FromCache) {
   base::FilePath temp_file;
-  ASSERT_TRUE(file_util::CreateTemporaryFileInDir(temp_dir(), &temp_file));
+  ASSERT_TRUE(base::CreateTemporaryFileInDir(temp_dir(), &temp_file));
 
   base::FilePath file_in_root(FILE_PATH_LITERAL("drive/root/File 1.txt"));
   ResourceEntry src_entry;
   ASSERT_EQ(FILE_ERROR_OK, GetLocalResourceEntry(file_in_root, &src_entry));
 
   // Store something as cached version of this file.
   FileError error = FILE_ERROR_OK;
   base::PostTaskAndReplyWithResult(
       blocking_task_runner(),
       FROM_HERE,
@@ skipping 146 matching lines @@
     EXPECT_TRUE(get_content_callback.data().empty());
     int64 local_file_size = 0;
     file_util::GetFileSize(local_path, &local_file_size);
     EXPECT_EQ(entry->file_info().size(), local_file_size);
     EXPECT_EQ(FILE_ERROR_OK, completion_error);
   }
 }
 
 TEST_F(DownloadOperationTest, EnsureFileDownloadedByLocalId_FromCache) {
   base::FilePath temp_file;
-  ASSERT_TRUE(file_util::CreateTemporaryFileInDir(temp_dir(), &temp_file));
+  ASSERT_TRUE(base::CreateTemporaryFileInDir(temp_dir(), &temp_file));
 
   base::FilePath file_in_root(FILE_PATH_LITERAL("drive/root/File 1.txt"));
   ResourceEntry src_entry;
   ASSERT_EQ(FILE_ERROR_OK, GetLocalResourceEntry(file_in_root, &src_entry));
 
   // Store something as cached version of this file.
   FileError error = FILE_ERROR_FAILED;
   base::PostTaskAndReplyWithResult(
       blocking_task_runner(),
       FROM_HERE,
@@ skipping 82 matching lines @@
   test_util::RunBlockingPoolTask();
 
   EXPECT_EQ(FILE_ERROR_OK, error);
   // Check that the result of local modification is propagated.
   EXPECT_EQ(static_cast<int64>(dirty_size), init_entry->file_info().size());
   EXPECT_EQ(static_cast<int64>(dirty_size), entry->file_info().size());
 }
 
 }  // namespace file_system
 }  // namespace drive