cc: Remove cheapness estimator usage from tile manager.

cc/base/worker_pool.h

 // Copyright 2013 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 CC_BASE_WORKER_POOL_H_
 #define CC_BASE_WORKER_POOL_H_
 
 #include <string>
 
 #include "base/cancelable_callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "cc/base/cc_export.h"
 #include "cc/base/scoped_ptr_deque.h"
 
 namespace cc {
 
 namespace internal {
 
 class WorkerPoolTask {
  public:
   virtual ~WorkerPoolTask();
 
-  virtual bool IsCheap() = 0;
-
-  virtual void Run() = 0;
-
   virtual void RunOnThread(unsigned thread_index) = 0;
 
   void DidComplete();
 
  protected:
   explicit WorkerPoolTask(const base::Closure& reply);
 
   const base::Closure reply_;
 };
 
@@ skipping 27 matching lines @@
   }
 
   // Tells the worker pool to shutdown and returns once all pending tasks have
   // completed.
   void Shutdown();
 
   // Posts |task| to worker pool. On completion, |reply|
   // is posted to the thread that called PostTaskAndReply().
   void PostTaskAndReply(const Callback& task, const base::Closure& reply);
 
-  // Set time limit for running cheap tasks.
-  void SetRunCheapTasksTimeLimit(base::TimeTicks run_cheap_tasks_time_limit);
-
  protected:
   WorkerPool(WorkerPoolClient* client,
              size_t num_threads,
              base::TimeDelta check_for_completed_tasks_delay,
              const std::string& thread_name_prefix);
 
   void PostTask(scoped_ptr<internal::WorkerPoolTask> task);
 
  private:
   class Inner;
   friend class Inner;
 
   void OnTaskCompleted();
   void OnIdle();
   void ScheduleCheckForCompletedTasks();
   void CheckForCompletedTasks();
-  void CancelCheckForCompletedTasks();
   void DispatchCompletionCallbacks();
-  void ScheduleRunCheapTasks();
-  void RunCheapTasks();
 
   WorkerPoolClient* client_;
   scoped_refptr<base::MessageLoopProxy> origin_loop_;
   base::WeakPtrFactory<WorkerPool> weak_ptr_factory_;
-  base::TimeTicks check_for_completed_tasks_time_;
   base::TimeDelta check_for_completed_tasks_delay_;
-  base::CancelableClosure check_for_completed_tasks_callback_;
   bool check_for_completed_tasks_pending_;
-  const base::Closure run_cheap_tasks_callback_;
-  base::TimeTicks run_cheap_tasks_time_limit_;
-  bool run_cheap_tasks_pending_;
 
   // Holds all completed tasks for which we have not yet dispatched
   // reply callbacks.
   ScopedPtrDeque<internal::WorkerPoolTask> completed_tasks_;
 
   // Hide the gory details of the worker pool in |inner_|.
   const scoped_ptr<Inner> inner_;
 
   DISALLOW_COPY_AND_ASSIGN(WorkerPool);
 };
 
 }  // namespace cc
 
 #endif  // CC_BASE_WORKER_POOL_H_