[Reland] Per WebViewScheduler virtual time

third_party/WebKit/Source/platform/Timer.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 68 matching lines @@
     static WebTaskRunner* UnthrottledWebTaskRunner();
 
 private:
     virtual void fired() = 0;
 
     virtual WebTaskRunner* timerTaskRunner();
 
     NO_LAZY_SWEEP_SANITIZE_ADDRESS
     virtual bool canFire() const { return true; }
 
+    double time() const;
+
     void setNextFireTime(double now, double delay);
 
     void runInternal();
 
     class CancellableTimerTask final : public WebTaskRunner::Task {
         WTF_MAKE_NONCOPYABLE(CancellableTimerTask);
     public:
         explicit CancellableTimerTask(TimerBase* timer) : m_timer(timer) { }
 
         ~CancellableTimerTask() override
@@ skipping 17 matching lines @@
             m_timer = nullptr;
         }
 
     private:
         TimerBase* m_timer; // NOT OWNED
     };
 
     double m_nextFireTime; // 0 if inactive
     double m_repeatInterval; // 0 if not repeating
     WebTraceLocation m_location;
-    CancellableTimerTask* m_cancellableTimerTask; // NOT OWNED
+    CancellableTimerTask* m_cancellableTimerTask; // Not owned.
     WebTaskRunner* m_webTaskRunner; // Not owned.
 
 #if ENABLE(ASSERT)
     ThreadIdentifier m_thread;
 #endif
 
     friend class ThreadTimers;
     friend class TimerHeapLessThanFunction;
     friend class TimerHeapReference;
 };
@@ skipping 72 matching lines @@
 NO_LAZY_SWEEP_SANITIZE_ADDRESS
 inline bool TimerBase::isActive() const
 {
     ASSERT(m_thread == currentThread());
     return m_cancellableTimerTask;
 }
 
 } // namespace blink
 
 #endif // Timer_h