scheduler: Maintain a constant enqueue order for every task

third_party/WebKit/Source/platform/scheduler/renderer/task_queue_throttler_unittest.cc

 // 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 "platform/scheduler/renderer/task_queue_throttler.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 40 matching lines @@
                           base::Bind(&RunTenTimesTask, count, timer_queue));
   }
 }
 
 bool IsQueueBlocked(TaskQueue* task_queue) {
   internal::TaskQueueImpl* task_queue_impl =
       reinterpret_cast<internal::TaskQueueImpl*>(task_queue);
   if (!task_queue_impl->IsQueueEnabled())
     return true;
   return task_queue_impl->GetFenceForTest() ==
-         static_cast<internal::EnqueueOrder>(
-             internal::EnqueueOrderValues::BLOCKING_FENCE);
+         static_cast<internal::SequenceNumber>(
+             internal::EnqueueOrderSequenceNumberValues::BLOCKING_FENCE);
 }
 }
 
 class TaskQueueThrottlerTest : public testing::Test {
  public:
   TaskQueueThrottlerTest() {}
   ~TaskQueueThrottlerTest() override {}
 
   void SetUp() override {
     clock_.reset(new base::SimpleTestTickClock());
@@ skipping 977 matching lines @@
       run_times,
       ElementsAre(
           base::TimeTicks() + base::TimeDelta::FromMilliseconds(1000),
           base::TimeTicks() + base::TimeDelta::FromMilliseconds(3000),
           base::TimeTicks() + base::TimeDelta::FromMilliseconds(6000),
           base::TimeTicks() + base::TimeDelta::FromMilliseconds(26000)));
 }
 
 }  // namespace scheduler
 }  // namespace blink