Move temp file functions to base namespace.

chrome/browser/chromeos/drive/remove_stale_cache_files_unittest.cc

Index: chrome/browser/chromeos/drive/remove_stale_cache_files_unittest.cc
diff --git a/chrome/browser/chromeos/drive/remove_stale_cache_files_unittest.cc b/chrome/browser/chromeos/drive/remove_stale_cache_files_unittest.cc
index a7be94b4bf468c919748fc30ef8db5341eaeec6f..8a43edc6114ceb201f90827db55c07ce433cd620 100644
--- a/chrome/browser/chromeos/drive/remove_stale_cache_files_unittest.cc
+++ b/chrome/browser/chromeos/drive/remove_stale_cache_files_unittest.cc
@@ -58,8 +58,7 @@ class RemoveStaleCacheFilesTest : public testing::Test {
 
 TEST_F(RemoveStaleCacheFilesTest, RemoveStaleCacheFiles) {
   base::FilePath dummy_file;
-  ASSERT_TRUE(file_util::CreateTemporaryFileInDir(temp_dir_.path(),
-                                                  &dummy_file));
+  ASSERT_TRUE(base::CreateTemporaryFileInDir(temp_dir_.path(), &dummy_file));
   std::string local_id("pdf:1a2b3c");
   std::string md5("abcdef0123456789");
 
@@ -85,8 +84,7 @@ TEST_F(RemoveStaleCacheFilesTest, RemoveStaleCacheFiles) {
 
 TEST_F(RemoveStaleCacheFilesTest, DirtyCacheFiles) {
   base::FilePath dummy_file;
-  ASSERT_TRUE(file_util::CreateTemporaryFileInDir(temp_dir_.path(),
-                                                  &dummy_file));
+  ASSERT_TRUE(base::CreateTemporaryFileInDir(temp_dir_.path(), &dummy_file));
 
   // Dirty and deleted (= absent in resource_metada) cache entry.
   std::string local_id_1("file:1");