Move scoped_temp_dir from base to base/files

chrome/browser/history/history_querying_unittest.cc

Index: chrome/browser/history/history_querying_unittest.cc
diff --git a/chrome/browser/history/history_querying_unittest.cc b/chrome/browser/history/history_querying_unittest.cc
index e7b4b411b6cbfd84ed010899db9f9800e98a2d97..184c809529b1d195a5f5a1c80f4093409a4375f9 100644
--- a/chrome/browser/history/history_querying_unittest.cc
+++ b/chrome/browser/history/history_querying_unittest.cc
@@ -7,8 +7,8 @@
 #include "base/bind_helpers.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
+#include "base/files/scoped_temp_dir.h"
 #include "base/path_service.h"
-#include "base/scoped_temp_dir.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/history/history.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -133,7 +133,7 @@ class HistoryQueryTest : public testing::Test {
     MessageLoop::current()->Quit();  // Will return out to QueryHistory.
   }
 
-  ScopedTempDir temp_dir_;
+  base::ScopedTempDir temp_dir_;
 
   MessageLoop message_loop_;