Move temp file functions to base namespace.

apps/app_restore_service_browsertest.cc

Index: apps/app_restore_service_browsertest.cc
diff --git a/apps/app_restore_service_browsertest.cc b/apps/app_restore_service_browsertest.cc
index 381efbf3e33171518f861b78c2e80f88b9dc7993..67c007f6611fe3661d42d7332f4788c9802c8a68 100644
--- a/apps/app_restore_service_browsertest.cc
+++ b/apps/app_restore_service_browsertest.cc
@@ -63,8 +63,8 @@ IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, FileAccessIsSavedToPrefs) {
   base::ScopedTempDir temp_directory;
   ASSERT_TRUE(temp_directory.CreateUniqueTempDir());
   base::FilePath temp_file;
-  ASSERT_TRUE(file_util::CreateTemporaryFileInDir(temp_directory.path(),
-                                                  &temp_file));
+  ASSERT_TRUE(base::CreateTemporaryFileInDir(temp_directory.path(),
+                                             &temp_file));
 
   FileSystemChooseEntryFunction::SkipPickerAndAlwaysSelectPathForTest(
       &temp_file);
@@ -108,8 +108,8 @@ IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, MAYBE_FileAccessIsRestored) {
   base::ScopedTempDir temp_directory;
   ASSERT_TRUE(temp_directory.CreateUniqueTempDir());
   base::FilePath temp_file;
-  ASSERT_TRUE(file_util::CreateTemporaryFileInDir(temp_directory.path(),
-                                                  &temp_file));
+  ASSERT_TRUE(base::CreateTemporaryFileInDir(temp_directory.path(),
+                                             &temp_file));
 
   FileSystemChooseEntryFunction::SkipPickerAndAlwaysSelectPathForTest(
       &temp_file);