Task Scheduler.

base/task_scheduler/test_util.cc

Index: base/task_scheduler/test_util.cc
diff --git a/base/task_scheduler/test_util.cc b/base/task_scheduler/test_util.cc
new file mode 100644
index 0000000000000000000000000000000000000000..65557032eec5f4e783a88c98bcb643a94905e715
--- /dev/null
+++ b/base/task_scheduler/test_util.cc
@@ -0,0 +1,29 @@
+// 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.
+
+#include "base/task_scheduler/test_util.h"
+
+#include <ostream>
+
+#include "base/logging.h"
+
+namespace base {
+
+void PrintTo(const TaskPriority& task_priority, std::ostream* os) {
+  switch (task_priority) {
+    case TaskPriority::USER_BLOCKING:
+      *os << "USER_BLOCKING";
+      break;
+    case TaskPriority::USER_VISIBLE:
+      *os << "USER_VISIBLE";
+      break;
+    case TaskPriority::BACKGROUND:
+      *os << "BACKGROUND";
+      break;
+    default:
+      NOTREACHED();
+  }
+}
+
+}  // namespace base