Move scoped_temp_dir from base to base/files

chrome/browser/value_store/value_store_frontend_unittest.cc

Index: chrome/browser/value_store/value_store_frontend_unittest.cc
diff --git a/chrome/browser/value_store/value_store_frontend_unittest.cc b/chrome/browser/value_store/value_store_frontend_unittest.cc
index efec3ed104f3ac0879c2ee594a22298a9bd86cc9..98b396a8943a1ec1d3ecb28b0660ef4375744a23 100644
--- a/chrome/browser/value_store/value_store_frontend_unittest.cc
+++ b/chrome/browser/value_store/value_store_frontend_unittest.cc
@@ -3,10 +3,10 @@
 // found in the LICENSE file.
 
 #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 "chrome/browser/value_store/value_store_frontend.h"
 #include "chrome/common/chrome_paths.h"
 #include "content/public/test/test_browser_thread.h"
@@ -60,7 +60,7 @@ class ValueStoreFrontendTest : public testing::Test {
   }
 
   scoped_ptr<ValueStoreFrontend> storage_;
-  ScopedTempDir temp_dir_;
+  base::ScopedTempDir temp_dir_;
   FilePath db_path_;
   MessageLoop message_loop_;
   content::TestBrowserThread ui_thread_;