[scheduler] Implement time-based cpu throttling.

third_party/WebKit/Source/platform/scheduler/base/task_time_tracker.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 THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_
-#define THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_
+#ifndef THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TASK_TRACKER_H_

[Sami, 2016/09/12 17:49:09]

TASK_TIME_TRACKER

[altimin, 2016/09/14 11:23:15]

Deleted.

+#define THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TASK_TRACKER_H_
 
-#include "base/callback.h"
-#include "base/macros.h"
-#include "base/message_loop/message_loop.h"
-#include "base/time/tick_clock.h"
-#include "public/platform/WebCommon.h"
+#include "base/time/time.h"
 
 namespace blink {
 namespace scheduler {
+class TaskQueue;
 
-class BLINK_PLATFORM_EXPORT TaskQueueManagerDelegate
-    : public base::SingleThreadTaskRunner,
-      public base::TickClock {
+// Internal alternative to public TaskTimeObserver, exposing more information.
+class TaskTimeTracker {

[alex clarke (OOO till 29th), 2016/09/12 17:45:26]

Is this used?

[altimin, 2016/09/14 11:23:15]

Deleted.

  public:
-  TaskQueueManagerDelegate() {}
+   TaskTimeTracker() {}
+   virtual ~TaskTimeTracker() {}
 
-  // Returns true if the task runner is nested (i.e., running a run loop within
-  // a nested task).
-  virtual bool IsNested() const = 0;
+   virtual void OnTaskRunTimeReported(
+       TaskQueue* task_queue,
+       base::TimeTicks start_time,
+       base::TimeTicks end_time) = 0;
 
- protected:
-  ~TaskQueueManagerDelegate() override {}
+   DISSALLOW_COPY_AND_ASSIGN(TaskTimeTracker);

[Sami, 2016/09/12 17:49:09]

-S :)

(It doesn't look like this file is being used since the build didn't fail?)

[altimin, 2016/09/14 11:23:15]

Deleted.

 
-  DISALLOW_COPY_AND_ASSIGN(TaskQueueManagerDelegate);
 };
 
 }  // namespace scheduler
 }  // namespace blink
 
-#endif  // THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_
+#endif  // THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TASK_TRACKER_H_