Move scoped_temp_dir from base to base/files

chrome/test/chromedriver/chrome_impl.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 "chrome/test/chromedriver/chrome_impl.h"
 
 #include "base/logging.h"
 #include "base/process_util.h"
 #include "chrome/test/chromedriver/status.h"
 
 ChromeImpl::ChromeImpl(base::ProcessHandle process,
-                       ScopedTempDir* user_data_dir)
+                       base::ScopedTempDir* user_data_dir)
     : process_(process) {
   if (user_data_dir->IsValid()) {
     CHECK(user_data_dir_.Set(user_data_dir->Take()));
   }
 }
 
 ChromeImpl::~ChromeImpl() {
   base::CloseProcessHandle(process_);
 }
 
 Status ChromeImpl::Quit() {
   if (!base::KillProcess(process_, 0, true))
     return Status(kUnknownError, "cannot kill Chrome");
   return Status(kOk);
 }