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
  22   void WillBeginFrame(const cc::BeginFrameArgs& args) override;
  23   void BeginFrameNotExpectedSoon() override;
  24   void DidCommitFrameToCompositor() override;
  25   void DidReceiveInputEventOnCompositorThread(
  26       const blink::WebInputEvent& web_input_event) override;
  27   void DidAnimateForInputOnCompositorThread() override;
  28   bool IsHighPriorityWorkAnticipated() override;
  29   bool ShouldYieldForHighPriorityWork() override;
  30   void AddTaskObserver(base::MessageLoop::TaskObserver* task_observer) override;
  31   void RemoveTaskObserver(
  32       base::MessageLoop::TaskObserver* task_observer) override;
  33   void Shutdown() override;
  34
  35  private:
  36   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
  37   scoped_refptr<SingleThreadIdleTaskRunner> idle_task_runner_;
  38
  39   DISALLOW_COPY_AND_ASSIGN(NullRendererScheduler);
  40 };
  41
  42 }  // namespace content
  43
  44 #endif  // CONTENT_RENDERER_SCHEDULER_NULL_RENDERER_SCHEDULER_H_