Prepare for per-webview virtual time

components/scheduler/child/virtual_time_tqm_delegate.cc

Index: components/scheduler/child/virtual_time_tqm_delegate.cc
diff --git a/components/scheduler/child/virtual_time_tqm_delegate.cc b/components/scheduler/child/virtual_time_tqm_delegate.cc
deleted file mode 100644
index a5aebf1bdbd76306a6be91a9c67b939e2fe357d7..0000000000000000000000000000000000000000
--- a/components/scheduler/child/virtual_time_tqm_delegate.cc
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright 2015 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/child/virtual_time_tqm_delegate.h"
-
-namespace scheduler {
-
-// static
-scoped_refptr<VirtualTimeTqmDelegate> VirtualTimeTqmDelegate::Create(
-    base::MessageLoop* message_loop,
-    base::TimeTicks initial_now) {
-  return make_scoped_refptr(
-      new VirtualTimeTqmDelegate(message_loop, initial_now));
-}
-
-VirtualTimeTqmDelegate::VirtualTimeTqmDelegate(base::MessageLoop* message_loop,
-                                               base::TimeTicks initial_now)
-    : message_loop_(message_loop),
-      message_loop_task_runner_(message_loop->task_runner()),
-      now_(initial_now) {}
-
-VirtualTimeTqmDelegate::~VirtualTimeTqmDelegate() {
-  RestoreDefaultTaskRunner();
-}
-
-void VirtualTimeTqmDelegate::SetDefaultTaskRunner(
-    scoped_refptr<base::SingleThreadTaskRunner> task_runner) {
-  message_loop_->SetTaskRunner(task_runner);
-}
-
-void VirtualTimeTqmDelegate::RestoreDefaultTaskRunner() {
-  if (base::MessageLoop::current() == message_loop_)
-    message_loop_->SetTaskRunner(message_loop_task_runner_);
-}
-
-bool VirtualTimeTqmDelegate::PostDelayedTask(
-    const tracked_objects::Location& from_here,
-    const base::Closure& task,
-    base::TimeDelta delay) {
-  if (delay > base::TimeDelta()) {
-    base::TimeTicks fire_time = now_ + delay;
-    delayed_wakeup_multimap_.insert(std::make_pair(fire_time, task));
-  }
-  return message_loop_task_runner_->PostDelayedTask(from_here, task, delay);
-}
-
-bool VirtualTimeTqmDelegate::PostNonNestableDelayedTask(
-    const tracked_objects::Location& from_here,
-    const base::Closure& task,
-    base::TimeDelta delay) {
-  return message_loop_task_runner_->PostNonNestableDelayedTask(from_here, task,
-                                                               delay);
-}
-
-bool VirtualTimeTqmDelegate::RunsTasksOnCurrentThread() const {
-  return message_loop_task_runner_->RunsTasksOnCurrentThread();
-}
-
-bool VirtualTimeTqmDelegate::IsNested() const {
-  return message_loop_->IsNested();
-}
-
-base::TimeTicks VirtualTimeTqmDelegate::NowTicks() {
-  return now_;
-}
-
-double VirtualTimeTqmDelegate::CurrentTimeSeconds() const {
-  return (now_ - base::TimeTicks::UnixEpoch()).InSecondsF();
-}
-
-void VirtualTimeTqmDelegate::AdvancedTimeTo(base::TimeTicks now) {
-  now_ = now;
-  DCHECK_GE(now, now_);
-  while (!delayed_wakeup_multimap_.empty()) {
-    DelayedWakeupMultimap::iterator next_wakeup =
-        delayed_wakeup_multimap_.begin();
-    if (next_wakeup->first > now)
-      break;
-    message_loop_task_runner_->PostDelayedTask(FROM_HERE, next_wakeup->second,
-                                               base::TimeDelta());
-    delayed_wakeup_multimap_.erase(next_wakeup);
-  }
-}
-
-void VirtualTimeTqmDelegate::OnNoMoreImmediateWork() {
-  if (delayed_wakeup_multimap_.empty())
-    return;
-
-  AdvancedTimeTo(delayed_wakeup_multimap_.begin()->first);
-}
-
-}  // namespace scheduler