Make the fuchsia mojo/public repo the source of truth.

mojo/public/cpp/environment/tests/run_loop_async_wait_perftest.cc

-// 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.
-
-// This file has perf tests for async waits using |mojo::RunLoop| (i.e., the
-// "standalone" |Environment|).
-
-#include <stdio.h>
-
-#include "gtest/gtest.h"
-#include "mojo/public/c/tests/environment/async_waiter_perftest_helpers.h"
-#include "mojo/public/cpp/environment/environment.h"
-#include "mojo/public/cpp/test_support/test_support.h"
-#include "mojo/public/cpp/utility/run_loop.h"
-
-namespace mojo {
-namespace {
-
-constexpr MojoTimeTicks kPerftestTimeMicroseconds = 3 * 1000000;
-
-TEST(RunLoopAsyncWaitPerftest, SingleThreaded) {
-  for (uint32_t num_handles = 1u; num_handles <= 10000u; num_handles *= 10u) {
-    RunLoop run_loop;
-
-    MojoTimeTicks start_time = 0;
-    MojoTimeTicks end_time = 0;
-    uint64_t raw_result = test::DoAsyncWaiterPerfTest(
-        Environment::GetDefaultAsyncWaiter(), num_handles,
-        [&start_time, &end_time]() {
-          RunLoop::current()->PostDelayedTask(
-              []() { RunLoop::current()->Quit(); }, kPerftestTimeMicroseconds);
-          start_time = MojoGetTimeTicksNow();
-          RunLoop::current()->Run();
-          end_time = MojoGetTimeTicksNow();
-        });
-
-    double result = static_cast<double>(raw_result) /
-                    (static_cast<double>(end_time - start_time) / 1000000.0);
-    char sub_test_name[100] = {};
-    sprintf(sub_test_name, "%u", static_cast<unsigned>(num_handles));
-    test::LogPerfResult("RunLoopAsyncWaitPerftest.SingleThreaded",
-                        sub_test_name, result, "callbacks/second");
-  }
-}
-
-}  // namespace
-}  // namespace mojo