DevTools: support all handlers that end up with function call in perfmonitor.

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/frame/PerformanceMonitor.h"
 #include "core/inspector/InspectorTraceEvents.h"
 #include "platform/Histogram.h"
 #include "platform/tracing/TraceEvent.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebScheduler.h"
 #include "public/platform/WebTraceLocation.h"
 #include "wtf/CurrentTime.h"
 #include "wtf/Functional.h"
 #include "wtf/RefCounted.h"
 
@@ skipping 142 matching lines @@
     return;
 
   double allottedTimeMillis =
       std::max((deadlineSeconds - monotonicallyIncreasingTime()) * 1000, 0.0);
 
   DEFINE_STATIC_LOCAL(
       CustomCountHistogram, idleCallbackDeadlineHistogram,
       ("WebCore.ScriptedIdleTaskController.IdleCallbackDeadline", 0, 50, 50));
   idleCallbackDeadlineHistogram.count(allottedTimeMillis);
 
+  PerformanceMonitor::HandlerCall handlerCall(getExecutionContext(),
+                                              "requestIdleCallback", 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