Get rid of gpu related switches by passing gpu::GpuPreferences via IPC.

content/public/browser/gpu_utils.h

+// Copyright 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 CONTENT_PUBLIC_BROWSER_GPU_UTILS_H_
+#define CONTENT_PUBLIC_BROWSER_GPU_UTILS_H_
+
+#include "content/common/content_export.h"
+#include "gpu/command_buffer/service/gpu_preferences.h"
+
+namespace content {
+
+CONTENT_EXPORT const gpu::GpuPreferences GetGpuPreferencesFromCommandLine();
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_GPU_UTILS_H_