content/renderer/scheduler/null_renderer_scheduler.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_RENDERER_SCHEDULER_NULL_RENDERER_SCHEDULER_H_
   6 #define CONTENT_RENDERER_SCHEDULER_NULL_RENDERER_SCHEDULER_H_
   7
   8 #include "content/renderer/scheduler/renderer_scheduler.h"
   9
  10 namespace content {
  11
  12 class NullRendererScheduler : public RendererScheduler {
  13  public:
  14   NullRendererScheduler();
  15   ~NullRendererScheduler() override;
  16
  17   scoped_refptr<base::SingleThreadTaskRunner> DefaultTaskRunner() override;
  18   scoped_refptr<base::SingleThreadTaskRunner> CompositorTaskRunner() override;
  19   scoped_refptr<base::SingleThreadTaskRunner> LoadingTaskRunner() override;
  20   scoped_refptr<SingleThreadIdleTaskRunner> IdleTaskRunner() override;
  21   scoped_refptr<base::SingleThreadTaskRunner> TimerTaskRunner() override;
  22
  23   void WillBeginFrame(const cc::BeginFrameArgs& args) override;
  24   void BeginFrameNotExpectedSoon() override;
  25   void DidCommitFrameToCompositor() override;
  26   void DidReceiveInputEventOnCompositorThread(
  27       const blink::WebInputEvent& web_input_event) override;
  28   void OnRendererHidden() override;
  29   void OnRendererVisible() override;
  30   void DidAnimateForInputOnCompositorThread() override;
  31   bool IsHighPriorityWorkAnticipated() override;
  32   bool ShouldYieldForHighPriorityWork() override;
  33   bool CanExceedIdleDeadlineIfRequired() const override;
  34   void AddTaskObserver(base::MessageLoop::TaskObserver* task_observer) override;
  35   void RemoveTaskObserver(
  36       base::MessageLoop::TaskObserver* task_observer) override;
  37   void Shutdown() override;
  38   void SuspendTimerQueue() override;
  39   void ResumeTimerQueue() override;
  40
  41  private:
  42   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
  43   scoped_refptr<SingleThreadIdleTaskRunner> idle_task_runner_;
  44
  45   DISALLOW_COPY_AND_ASSIGN(NullRendererScheduler);
  46 };
  47
  48 }  // namespace content
  49
  50 #endif  // CONTENT_RENDERER_SCHEDULER_NULL_RENDERER_SCHEDULER_H_