Add an api to disable recording task delay histogrames

third_party/WebKit/Source/platform/scheduler/child/scheduler_helper.cc

 // 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 "platform/scheduler/child/scheduler_helper.h"
 
 #include "base/time/default_tick_clock.h"
 #include "base/trace_event/trace_event.h"
 #include "base/trace_event/trace_event_argument.h"
 #include "platform/scheduler/base/task_queue_impl.h"
@@ skipping 37 matching lines @@
 }
 
 void SchedulerHelper::Shutdown() {
   CheckOnValidThread();
   if (task_queue_manager_)
     task_queue_manager_->SetObserver(nullptr);
   task_queue_manager_.reset();
   task_queue_manager_delegate_->RestoreDefaultTaskRunner();
 }
 
+void SchedulerHelper::SetRecordTaskDelayHistograms(
+    bool record_task_delay_histograms) {
+  if (!task_queue_manager_)
+    return;
+
+  task_queue_manager_->SetRecordTaskDelayHistograms(
+      record_task_delay_histograms);
+}
+
 scoped_refptr<TaskQueue> SchedulerHelper::NewTaskQueue(
     const TaskQueue::Spec& spec) {
   DCHECK(task_queue_manager_.get());
   return task_queue_manager_->NewTaskQueue(spec);
 }
 
 scoped_refptr<TaskQueue> SchedulerHelper::DefaultTaskRunner() {
   CheckOnValidThread();
   return default_task_runner_;
 }
@@ skipping 99 matching lines @@
 }
 
 TaskQueue* SchedulerHelper::CurrentlyExecutingTaskQueue() const {
   if (!task_queue_manager_)
     return nullptr;
   return task_queue_manager_->currently_executing_task_queue();
 }
 
 }  // namespace scheduler
 }  // namespace blink