Revert of gpu: GPU service scheduler.

content/common/gpu_stream_constants.h

Index: content/common/gpu_stream_constants.h
diff --git a/content/common/gpu_stream_constants.h b/content/common/gpu_stream_constants.h
deleted file mode 100644
index f3b0254aa7aa414dd26d48e2606d81459f2dae29..0000000000000000000000000000000000000000
--- a/content/common/gpu_stream_constants.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2017 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_COMMON_GPU_STREAM_CONSTANTS_H_
-#define CONTENT_COMMON_GPU_STREAM_CONSTANTS_H_
-
-#include "gpu/command_buffer/common/scheduling_priority.h"
-
-namespace content {
-
-enum {
-  kGpuStreamIdDefault,
-  kGpuStreamIdWorker,
-};
-
-const gpu::SchedulingPriority kGpuStreamPriorityDefault =
-    gpu::SchedulingPriority::kNormal;
-const gpu::SchedulingPriority kGpuStreamPriorityUI =
-    gpu::SchedulingPriority::kHighest;
-const gpu::SchedulingPriority kGpuStreamPriorityWorker =
-    gpu::SchedulingPriority::kLowest;
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_GPU_STREAM_CONSTANTS_H_