Move scoped_temp_dir from base to base/files

chrome/browser/extensions/app_notification_storage_unittest.cc

Index: chrome/browser/extensions/app_notification_storage_unittest.cc
diff --git a/chrome/browser/extensions/app_notification_storage_unittest.cc b/chrome/browser/extensions/app_notification_storage_unittest.cc
index f6328790dd818212a19aa3348cbd930dac093484..ac073a97a85f21453fa53286080e61d0170d3859 100644
--- a/chrome/browser/extensions/app_notification_storage_unittest.cc
+++ b/chrome/browser/extensions/app_notification_storage_unittest.cc
@@ -4,10 +4,10 @@
 
 #include "base/file_path.h"
 #include "base/file_util.h"
+#include "base/files/scoped_temp_dir.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
-#include "base/scoped_temp_dir.h"
 #include "base/stl_util.h"
 #include "chrome/browser/extensions/app_notification.h"
 #include "chrome/browser/extensions/app_notification_storage.h"
@@ -46,7 +46,7 @@ class AppNotificationStorageTest : public testing::Test {
 
   MessageLoop message_loop_;
   content::TestBrowserThread file_thread_;
-  ScopedTempDir dir_;
+  base::ScopedTempDir dir_;
   FilePath storage_path_;
   scoped_ptr<AppNotificationStorage> storage_;
 };