scheduler: Make DOM window event tasks unthrottled

third_party/WebKit/Source/core/frame/DOMTimer.cpp

 /*
  * Copyright (C) 2008 Apple 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
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  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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 #include "core/frame/DOMTimer.h"
 
 #include "core/dom/ExecutionContext.h"
+#include "core/dom/TaskRunnerHelper.h"
 #include "core/frame/PerformanceMonitor.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/inspector/InspectorTraceEvents.h"
 #include "platform/tracing/TraceEvent.h"
 #include "wtf/CurrentTime.h"
 
 namespace blink {
 
 static const int maxIntervalForUserGestureForwarding =
     1000;  // One second matches Gecko.
@@ skipping 38 matching lines @@
   // Eagerly unregister as ExecutionContext observer.
   if (timer)
     timer->clearContext();
 }
 
 DOMTimer::DOMTimer(ExecutionContext* context,
                    ScheduledAction* action,
                    int interval,
                    bool singleShot,
                    int timeoutID)
-    : SuspendableTimer(context),
+    : SuspendableTimer(context, TaskType::Timer),
       m_timeoutID(timeoutID),
       m_nestingLevel(context->timers()->timerNestingLevel() + 1),
       m_action(action) {
   ASSERT(timeoutID > 0);
   if (shouldForwardUserGesture(interval, m_nestingLevel))
     m_userGestureToken = UserGestureIndicator::currentToken();
 
   InspectorInstrumentation::asyncTaskScheduled(
       context, singleShot ? "setTimeout" : "setInterval", this, !singleShot);
 
@@ skipping 77 matching lines @@
 WebTaskRunner* DOMTimer::timerTaskRunner() const {
   return getExecutionContext()->timers()->timerTaskRunner();
 }
 
 DEFINE_TRACE(DOMTimer) {
   visitor->trace(m_action);
   SuspendableTimer::trace(visitor);
 }
 
 }  // namespace blink