[scheduler] Add RendererScheduler.TaskDurationPerQueueType.

third_party/WebKit/Source/platform/scheduler/renderer/renderer_scheduler_impl.h

 // Copyright 2014 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.
 
 #ifndef THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_RENDERER_SCHEDULER_IMPL_H_
 #define THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_RENDERER_SCHEDULER_IMPL_H_
 
 #include "base/atomicops.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
@@ skipping 13 matching lines @@
 #include "platform/scheduler/renderer/render_widget_signals.h"
 #include "platform/scheduler/renderer/task_cost_estimator.h"
 #include "platform/scheduler/renderer/user_model.h"
 #include "platform/scheduler/renderer/web_view_scheduler_impl.h"
 #include "public/platform/scheduler/renderer/renderer_scheduler.h"
 
 namespace base {
 namespace trace_event {
 class ConvertableToTraceFormat;
 }
+class HistogramBase;
 }
 
 namespace blink {
 namespace scheduler {
 class AutoAdvancingVirtualTimeDomain;
 class RenderWidgetSchedulingState;
 class WebViewSchedulerImpl;
 class TaskQueueThrottler;
 
 class PLATFORM_EXPORT RendererSchedulerImpl
@@ skipping 354 matching lines @@
       const TaskQueuePolicy& old_task_queue_policy,
       const TaskQueuePolicy& new_task_queue_policy) const;
 
   static const char* ExpensiveTaskPolicyToString(
       ExpensiveTaskPolicy expensive_task_policy);
 
   bool ShouldDisableThrottlingBecauseOfAudio(base::TimeTicks now);
 
   void AddQueueToWakeUpBudgetPool(TaskQueue* queue);
 
+  void RecordTaskMetrics(TaskQueue::QueueType queue_type,
+                         base::TimeDelta duration);
+
+  void RecordTaskDurationPerQueueType(TaskQueue::QueueType queue_type,
+                                      base::TimeDelta duration);
+
   SchedulerHelper helper_;
   IdleHelper idle_helper_;
   IdleCanceledDelayedTaskSweeper idle_canceled_delayed_task_sweeper_;
   std::unique_ptr<TaskQueueThrottler> task_queue_throttler_;
   RenderWidgetSignals render_widget_scheduler_signals_;
 
   const scoped_refptr<TaskQueue> control_task_queue_;
   const scoped_refptr<TaskQueue> compositor_task_queue_;
   scoped_refptr<TaskQueue> virtual_time_control_task_queue_;
   std::unique_ptr<TaskQueue::QueueEnabledVoter>
@@ skipping 62 matching lines @@
     bool have_reported_blocking_intervention_in_current_policy;
     bool have_reported_blocking_intervention_since_navigation;
     bool has_visible_render_widget_with_touch_handler;
     bool begin_frame_not_expected_soon;
     bool in_idle_period_for_testing;
     bool use_virtual_time;
     bool is_audio_playing;
     std::set<WebViewSchedulerImpl*> web_view_schedulers;  // Not owned.
     RAILModeObserver* rail_mode_observer;                 // Not owned.
     WakeUpBudgetPool* wake_up_budget_pool;                // Not owned.
+    std::array<base::TimeDelta,
+               static_cast<size_t>(TaskQueue::QueueType::COUNT)>
+        unreported_task_duration;
+    base::HistogramBase* task_duration_per_queue_type_histogram;
   };
 
   struct AnyThread {
     AnyThread();
     ~AnyThread();
 
     base::TimeTicks last_idle_period_end_time;
     base::TimeTicks fling_compositor_escalation_deadline;
     UserModel user_model;
     bool awaiting_touch_start_response;
@@ skipping 59 matching lines @@
 
   base::WeakPtrFactory<RendererSchedulerImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererSchedulerImpl);
 };
 
 }  // namespace scheduler
 }  // namespace blink
 
 #endif  // THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_RENDERER_SCHEDULER_IMPL_H_