Keep only base/extractor.[cc|h].

tools/longrunning/long_running.cc

-// Copyright 2008-2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-//
-// Do nothing executable. Sleeps infinitely.
-
-#pragma check_stack(off)
-#pragma runtime_checks("", off)
-#include <windows.h>
-
-int __stdcall WinMain(HINSTANCE,
-                      HINSTANCE,
-                      LPSTR,
-                      int) {
-  ::SleepEx(INFINITE, FALSE);
-  return 0;
-}