DevTools: move recurring flag into AsyncTask, control cancelation from embedder only.

third_party/WebKit/Source/core/xmlhttprequest/XMLHttpRequestProgressEventThrottle.cpp

 /*
  * Copyright (C) 2010 Julien Chaffraix <jchaffraix@webkit.org>  All right
  * reserved.
  * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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.
@@ skipping 114 matching lines @@
     stop();
   }
 
   m_hasDispatchedProgressProgressEvent = false;
   if (state == m_target->readyState()) {
     // We don't dispatch the event when an event handler associated with
     // the previously dispatched event changes the readyState (e.g. when
     // the event handler calls xhr.abort()). In such cases a
     // readystatechange should have been already dispatched if necessary.
     probe::AsyncTask asyncTask(m_target->getExecutionContext(), m_target,
-                               m_target->isAsync());
+                               "progress");
+    asyncTask.setEnabled(m_target->isAsync());
     m_target->dispatchEvent(event);
   }
 }
 
 void XMLHttpRequestProgressEventThrottle::dispatchProgressProgressEvent(
     Event* progressEvent) {
   XMLHttpRequest::State state = m_target->readyState();
   if (m_target->readyState() == XMLHttpRequest::kLoading &&
       m_hasDispatchedProgressProgressEvent) {
     TRACE_EVENT1("devtools.timeline", "XHRReadyStateChange", "data",
                  InspectorXhrReadyStateChangeEvent::data(
                      m_target->getExecutionContext(), m_target));
     probe::AsyncTask asyncTask(m_target->getExecutionContext(), m_target,
-                               m_target->isAsync());
+                               "progress");
+    asyncTask.setEnabled(m_target->isAsync());
     m_target->dispatchEvent(Event::create(EventTypeNames::readystatechange));
   }
 
   if (m_target->readyState() != state)
     return;
 
   m_hasDispatchedProgressProgressEvent = true;
   probe::AsyncTask asyncTask(m_target->getExecutionContext(), m_target,
-                             m_target->isAsync());
+                             "progress");
+  asyncTask.setEnabled(m_target->isAsync());
   m_target->dispatchEvent(progressEvent);
 }
 
 void XMLHttpRequestProgressEventThrottle::fired() {
   if (!m_deferred.isSet()) {
     // No "progress" event was queued since the previous dispatch, we can
     // safely stop the timer.
     return;
   }
 
@@ skipping 16 matching lines @@
   // over the list of SuspendableObjects to resume them, and any activated JS
   // event-handler could insert new SuspendableObjects to the list.
   startOneShot(0, BLINK_FROM_HERE);
 }
 
 DEFINE_TRACE(XMLHttpRequestProgressEventThrottle) {
   visitor->trace(m_target);
 }
 
 }  // namespace blink