Move scoped_temp_dir from base to base/files

chrome/browser/net/transport_security_persister_unittest.cc

Index: chrome/browser/net/transport_security_persister_unittest.cc
diff --git a/chrome/browser/net/transport_security_persister_unittest.cc b/chrome/browser/net/transport_security_persister_unittest.cc
index 32ddfa2113f78437323a88c767aa0b8c044ac26a..bb2f9188b4c32760019b133deba125c7cf94225b 100644
--- a/chrome/browser/net/transport_security_persister_unittest.cc
+++ b/chrome/browser/net/transport_security_persister_unittest.cc
@@ -10,8 +10,8 @@
 
 #include "base/file_path.h"
 #include "base/file_util.h"
+#include "base/files/scoped_temp_dir.h"
 #include "base/message_loop.h"
-#include "base/scoped_temp_dir.h"
 #include "content/public/test/test_browser_thread.h"
 #include "net/base/transport_security_state.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -47,7 +47,7 @@ class TransportSecurityPersisterTest : public testing::Test {
   // TransportSecurityPersister runs on the IO thread.
   content::TestBrowserThread test_io_thread_;
 
-  ScopedTempDir temp_dir_;
+  base::ScopedTempDir temp_dir_;
   TransportSecurityState state_;
   scoped_ptr<TransportSecurityPersister> persister_;
 };