Revert of Refactor context creation parameters into a struct.

gpu/command_buffer/service/service_utils.h

Index: gpu/command_buffer/service/service_utils.h
diff --git a/gpu/command_buffer/service/service_utils.h b/gpu/command_buffer/service/service_utils.h
deleted file mode 100644
index af4e1e6f4bfd35c99940679e076249551a151caf..0000000000000000000000000000000000000000
--- a/gpu/command_buffer/service/service_utils.h
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2016 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.
-
-#ifndef GPU_COMMAND_BUFFER_SERVICE_SERVICE_UTILS_H_
-#define GPU_COMMAND_BUFFER_SERVICE_SERVICE_UTILS_H_
-
-#include "gpu/gpu_export.h"
-#include "ui/gl/gl_context.h"
-
-namespace gpu {
-struct GpuPreferences;
-
-namespace gles2 {
-struct ContextCreationAttribHelper;
-
-GPU_EXPORT gl::GLContextAttribs GenerateGLContextAttribs(
-    const ContextCreationAttribHelper& attribs_helper,
-    const GpuPreferences& gpu_preferences);
-
-}  // namespace gles2
-}  // namespace gpu
-
-#endif  // GPU_COMMAND_BUFFER_SERVICE_SERVICE_UTILS_H_