scheduler: Move the Blink scheduler into Blink

components/scheduler/renderer/throttled_time_domain.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.
-
-#include "components/scheduler/renderer/throttled_time_domain.h"
-
-namespace scheduler {
-
-ThrottledTimeDomain::ThrottledTimeDomain(TimeDomain::Observer* observer,
-                                         const char* tracing_category)
-    : RealTimeDomain(observer, tracing_category) {}
-
-ThrottledTimeDomain::~ThrottledTimeDomain() {}
-
-const char* ThrottledTimeDomain::GetName() const {
-  return "ThrottledTimeDomain";
-}
-
-void ThrottledTimeDomain::RequestWakeup(base::TimeTicks now,
-                                        base::TimeDelta delay) {
-  // We assume the owner (i.e. ThrottlingHelper) will manage wakeups on our
-  // behalf.
-}
-
-bool ThrottledTimeDomain::MaybeAdvanceTime() {
-  base::TimeTicks next_run_time;
-  if (!NextScheduledRunTime(&next_run_time))
-    return false;
-
-  base::TimeTicks now = Now();
-  if (now >= next_run_time)
-    return true;  // Causes DoWork to post a continuation.
-
-  // Unlike RealTimeDomain::MaybeAdvanceTime we don't request a wake up here, we
-  // assume the owner (i.e. ThrottlingHelper) will manage wakeups on our behalf.
-  return false;
-}
-
-}  // namespace scheduler