content/renderer/scheduler/web_scheduler_impl.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_WEB_SCHEDULER_IMPL_H_
   6 #define CONTENT_RENDERER_SCHEDULER_WEB_SCHEDULER_IMPL_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/time/time.h"
  11 #include "content/common/content_export.h"
  12 #include "third_party/WebKit/public/platform/WebScheduler.h"
  13 #include "third_party/WebKit/public/platform/WebThread.h"
  14
  15 namespace base {
  16 class SingleThreadTaskRunner;
  17 }
  18
  19 namespace content {
  20
  21 class RendererScheduler;
  22 class SingleThreadIdleTaskRunner;
  23
  24 class CONTENT_EXPORT WebSchedulerImpl : public blink::WebScheduler {
  25  public:
  26   WebSchedulerImpl(RendererScheduler* renderer_scheduler);
  27   ~WebSchedulerImpl() override;
  28
  29   virtual bool shouldYieldForHighPriorityWork();
  30   virtual void postIdleTask(const blink::WebTraceLocation& location,
  31                             blink::WebScheduler::IdleTask* task);
  32   virtual void postIdleTaskAfterWakeup(const blink::WebTraceLocation& location,
  33                                        blink::WebScheduler::IdleTask* task);
  34   virtual void postLoadingTask(const blink::WebTraceLocation& location,
  35                                blink::WebThread::Task* task);
  36   virtual void shutdown();
  37
  38  private:
  39   static void runIdleTask(scoped_ptr<blink::WebScheduler::IdleTask> task,
  40                           base::TimeTicks deadline);
  41   static void runTask(scoped_ptr<blink::WebThread::Task> task);
  42
  43   RendererScheduler* renderer_scheduler_;
  44   scoped_refptr<SingleThreadIdleTaskRunner> idle_task_runner_;
  45   scoped_refptr<base::SingleThreadTaskRunner> loading_task_runner_;
  46 };
  47
  48 }  // namespace content
  49
  50 #endif  // CONTENT_RENDERER_SCHEDULER_WEB_SCHEDULER_IMPL_H_