gpu: GPU service scheduler.

gpu/command_buffer/common/scheduling_priority.cc

Index: gpu/command_buffer/common/scheduling_priority.cc
diff --git a/gpu/command_buffer/common/scheduling_priority.cc b/gpu/command_buffer/common/scheduling_priority.cc
new file mode 100644
index 0000000000000000000000000000000000000000..62b6456c9217f3fe3b464c8dd319fc6b1ef4eb51
--- /dev/null
+++ b/gpu/command_buffer/common/scheduling_priority.cc
@@ -0,0 +1,28 @@
+// Copyright 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.
+
+#include "gpu/command_buffer/common/scheduling_priority.h"
+
+#include "base/logging.h"
+
+namespace gpu {
+
+const char* SchedulingPriorityToString(SchedulingPriority priority) {
+  switch (priority) {
+    case SchedulingPriority::kHighest:
+      return "Highest";
+    case SchedulingPriority::kHigh:
+      return "High";
+    case SchedulingPriority::kNormal:
+      return "Normal";
+    case SchedulingPriority::kLow:
+      return "Low";
+    case SchedulingPriority::kLowest:
+      return "Lowest";
+  }
+  NOTREACHED();
+  return "";
+}
+
+}  // namespace gpu