Revert 86306 (failed compile on win builder) - Move OpenGL ES 2.0 conformance test support into m...

gpu/gles2_conform_support/native/main.cc

-// Copyright (c) 2011 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 "base/at_exit.h"
-#include "base/message_loop.h"
-
-#if defined(OS_LINUX)
-#include <gtk/gtk.h>
-#endif  // OS_LINUX
-
-extern "C" {
-#if defined(GLES2_CONFORM_SUPPORT_ONLY)
-#include "gpu/gles2_conform_support/gtf/gtf_stubs.h"
-#else
-#include "third_party/gles2_conform/GTF_ES/glsl/GTF/Source/GTFMain.h"
-#endif
-}
-
-int main(int argc, char *argv[]) {
-#if defined(OS_LINUX)
-  gtk_init(&argc, &argv);
-#endif  // OS_LINUX
-
-  base::AtExitManager at_exit;
-  MessageLoopForUI message_loop;
-
-  GTFMain(argc, argv);
-
-  return 0;
-}
-