Revert of Add a WorkerScheduler and a WebThreadImplForWorker

content/child/scheduler/scheduler_helper.h

 // 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.
 
 #ifndef CONTENT_CHILD_SCHEDULER_SCHEDULER_HELPER_H_
 #define CONTENT_CHILD_SCHEDULER_SCHEDULER_HELPER_H_
 
 #include "cc/test/test_now_source.h"
 #include "content/child/scheduler/cancelable_closure_holder.h"
 #include "content/child/scheduler/single_thread_idle_task_runner.h"
@@ skipping 13 matching lines @@
     SchedulerHelperDelegate();
     virtual ~SchedulerHelperDelegate();
 
     // If it's ok to enter a Long Idle period, return true.  Otherwise return
     // false and set next_long_idle_period_delay_out so we know when to try
     // again.
     virtual bool CanEnterLongIdlePeriod(
         base::TimeTicks now,
         base::TimeDelta* next_long_idle_period_delay_out) = 0;
 
-    // Signals that the Long Idle Period hasn't started yet because the system
-    // isn't quiescent.
-    virtual void IsNotQuiescent() = 0;
-
    private:
     DISALLOW_COPY_AND_ASSIGN(SchedulerHelperDelegate);
   };
 
   // NOTE |total_task_queue_count| must be >= TASK_QUEUE_COUNT.
   // Category strings must have application lifetime (statics or
   // literals). They may not include " chars.
   SchedulerHelper(
       scoped_refptr<NestableSingleThreadTaskRunner> main_task_runner,
       SchedulerHelperDelegate* scheduler_helper_delegate,
@@ skipping 151 matching lines @@
 
   base::WeakPtr<SchedulerHelper> weak_scheduler_ptr_;
   base::WeakPtrFactory<SchedulerHelper> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SchedulerHelper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_SCHEDULER_SCHEDULER_HELPER_H_