Move scoped_temp_dir from base to base/files

chrome/browser/sync_file_system/drive_file_sync_service_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 "chrome/browser/sync_file_system/drive_file_sync_service.h"
 
 #include "base/message_loop.h"
 #include "base/message_loop_proxy.h"
 #include "chrome/browser/google_apis/gdata_errorcode.h"
 #include "chrome/browser/google_apis/mock_drive_service.h"
@@ skipping 121 matching lines @@
     return DriveFileSyncClient::FormatTitleQuery(title);
   }
 
   const DriveFileSyncService::ChangeQueue& pending_changes() const {
     return sync_service_->pending_changes_;
   }
 
  private:
   MessageLoop message_loop_;
 
-  ScopedTempDir base_dir_;
+  base::ScopedTempDir base_dir_;
   TestingProfile profile_;
 
   scoped_ptr<DriveFileSyncService> sync_service_;
 
   // Owned by |sync_client_|.
   StrictMock<google_apis::MockDriveService>* mock_drive_service_;
   StrictMock<google_apis::MockDriveUploader>* mock_drive_uploader_;
 
   scoped_ptr<DriveFileSyncClient> sync_client_;
   scoped_ptr<DriveMetadataStore> metadata_store_;
@@ skipping 271 matching lines @@
   EXPECT_TRUE(done);
 
   EXPECT_TRUE(metadata_store()->batch_sync_origins().empty());
   EXPECT_EQ(1u, metadata_store()->incremental_sync_origins().size());
   EXPECT_TRUE(pending_changes().empty());
 }
 
 #endif  // !defined(OS_ANDROID)
 
 }  // namespace sync_file_system