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

third_party/WebKit/Source/core/dom/ScriptedIdleTaskController.cpp

 // 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.
 
 #include "core/dom/ScriptedIdleTaskController.h"
 
 #include "core/dom/ExecutionContext.h"
 #include "core/dom/IdleRequestCallback.h"
 #include "core/dom/IdleRequestOptions.h"
 #include "core/inspector/InspectorInstrumentation.h"
@@ skipping 85 matching lines @@
 }
 
 ScriptedIdleTaskController::CallbackId
 ScriptedIdleTaskController::registerCallback(
     IdleRequestCallback* callback,
     const IdleRequestOptions& options) {
   CallbackId id = nextCallbackId();
   m_callbacks.set(id, callback);
   long long timeoutMillis = options.timeout();
 
+  probe::asyncTaskScheduled(getExecutionContext(), "requestIdleCallback",
+                            callback);
+
   RefPtr<internal::IdleRequestCallbackWrapper> callbackWrapper =
       internal::IdleRequestCallbackWrapper::create(id, this);
   m_scheduler->postIdleTask(
       BLINK_FROM_HERE,
       WTF::bind(&internal::IdleRequestCallbackWrapper::idleTaskFired,
                 callbackWrapper));
   if (timeoutMillis > 0)
     m_scheduler->timerTaskRunner()->postDelayedTask(
         BLINK_FROM_HERE,
         WTF::bind(&internal::IdleRequestCallbackWrapper::timeoutFired,
@@ skipping 35 matching lines @@
   }
 
   runCallback(id, deadlineSeconds, callbackType);
 }
 
 void ScriptedIdleTaskController::runCallback(
     CallbackId id,
     double deadlineSeconds,
     IdleDeadline::CallbackType callbackType) {
   DCHECK(!m_suspended);
-  auto callback = m_callbacks.take(id);
+  IdleRequestCallback* callback = m_callbacks.take(id);
   if (!callback)
     return;
 
   double allottedTimeMillis =
       std::max((deadlineSeconds - monotonicallyIncreasingTime()) * 1000, 0.0);
 
   DEFINE_STATIC_LOCAL(
       CustomCountHistogram, idleCallbackDeadlineHistogram,
       ("WebCore.ScriptedIdleTaskController.IdleCallbackDeadline", 0, 50, 50));
   idleCallbackDeadlineHistogram.count(allottedTimeMillis);
 
+  probe::AsyncTask asyncTask(getExecutionContext(), callback);
   probe::UserCallback probe(getExecutionContext(), "requestIdleCallback",
                             AtomicString(), true);
+
   TRACE_EVENT1(
       "devtools.timeline", "FireIdleCallback", "data",
       InspectorIdleCallbackFireEvent::data(
           getExecutionContext(), id, allottedTimeMillis,
           callbackType == IdleDeadline::CallbackType::CalledByTimeout));
   callback->handleEvent(IdleDeadline::create(deadlineSeconds, callbackType));
 
   double overrunMillis =
       std::max((monotonicallyIncreasingTime() - deadlineSeconds) * 1000, 0.0);
 
@@ skipping 27 matching lines @@
     RefPtr<internal::IdleRequestCallbackWrapper> callbackWrapper =
         internal::IdleRequestCallbackWrapper::create(callback.key, this);
     m_scheduler->postIdleTask(
         BLINK_FROM_HERE,
         WTF::bind(&internal::IdleRequestCallbackWrapper::idleTaskFired,
                   callbackWrapper));
   }
 }
 
 }  // namespace blink