Move scoped_temp_dir from base to base/files

chrome/browser/webdata/web_database_migration_unittest.cc

Index: chrome/browser/webdata/web_database_migration_unittest.cc
diff --git a/chrome/browser/webdata/web_database_migration_unittest.cc b/chrome/browser/webdata/web_database_migration_unittest.cc
index 4632244ddc6a989cd82d761c143eed0e3598bffe..5cca55b96936d6ad6bbe10843bcd21b8a58902fd 100644
--- a/chrome/browser/webdata/web_database_migration_unittest.cc
+++ b/chrome/browser/webdata/web_database_migration_unittest.cc
@@ -5,9 +5,9 @@
 #include <string>
 
 #include "base/file_util.h"
+#include "base/files/scoped_temp_dir.h"
 #include "base/guid.h"
 #include "base/message_loop.h"
-#include "base/scoped_temp_dir.h"
 #include "base/stl_util.h"
 #include "base/string16.h"
 #include "base/string_number_conversions.h"
@@ -190,7 +190,7 @@ class WebDatabaseMigrationTest : public testing::Test {
  private:
   MessageLoopForUI message_loop_for_ui_;
   content::TestBrowserThread ui_thread_;
-  ScopedTempDir temp_dir_;
+  base::ScopedTempDir temp_dir_;
 
   DISALLOW_COPY_AND_ASSIGN(WebDatabaseMigrationTest);
 };