Move scoped_temp_dir from base to base/files

chrome/browser/visitedlink/visitedlink_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <cstdio>
 #include <string>
 #include <vector>
 
 #include "base/file_util.h"
 #include "base/message_loop.h"
@@ skipping 173 matching lines @@
     history_dir_ = temp_dir_.path().AppendASCII("VisitedLinkTest");
     ASSERT_TRUE(file_util::CreateDirectory(history_dir_));
 
     visited_file_ = history_dir_.Append(FILE_PATH_LITERAL("VisitedLinks"));
   }
 
   virtual void TearDown() {
     ClearDB();
   }
 
-  ScopedTempDir temp_dir_;
+  base::ScopedTempDir temp_dir_;
 
   MessageLoop message_loop_;
   content::TestBrowserThread ui_thread_;
   content::TestBrowserThread file_thread_;
 
   // Filenames for the services;
   FilePath history_dir_;
   FilePath visited_file_;
 
   scoped_ptr<VisitedLinkMaster> master_;
@@ skipping 514 matching lines @@
   EXPECT_EQ(1, profile()->add_event_count());
   EXPECT_EQ(0, profile()->reset_event_count());
 
   // Activate the tab.
   rvh_tester()->SimulateWasShown();
 
   // We should have only one more reset event.
   EXPECT_EQ(1, profile()->add_event_count());
   EXPECT_EQ(1, profile()->reset_event_count());
 }