Move scoped_temp_dir from base to base/files

sql/transaction_unittest.cc

Index: sql/transaction_unittest.cc
diff --git a/sql/transaction_unittest.cc b/sql/transaction_unittest.cc
index f306a5cb6ef1937175f530d11a06703a11ad9b4f..8b2abc31498a05a4050fde9c4a71b88d2e0e1c86 100644
--- a/sql/transaction_unittest.cc
+++ b/sql/transaction_unittest.cc
@@ -3,7 +3,7 @@
 // found in the LICENSE file.
 
 #include "base/file_util.h"
-#include "base/scoped_temp_dir.h"
+#include "base/files/scoped_temp_dir.h"
 #include "sql/connection.h"
 #include "sql/statement.h"
 #include "sql/transaction.h"
@@ -36,7 +36,7 @@ class SQLTransactionTest : public testing::Test {
   }
 
  private:
-  ScopedTempDir temp_dir_;
+  base::ScopedTempDir temp_dir_;
   sql::Connection db_;
 };