[scheduler] Implement time-based cpu throttling.

third_party/WebKit/Source/core/inspector/InspectorWebPerfAgent.h

Index: third_party/WebKit/Source/core/inspector/InspectorWebPerfAgent.h
diff --git a/third_party/WebKit/Source/core/inspector/InspectorWebPerfAgent.h b/third_party/WebKit/Source/core/inspector/InspectorWebPerfAgent.h
index 17c31580f266a8a390531897b224ecd63ce9900b..da5ef2160a66d9143e4d150d205432849a50bc4d 100644
--- a/third_party/WebKit/Source/core/inspector/InspectorWebPerfAgent.h
+++ b/third_party/WebKit/Source/core/inspector/InspectorWebPerfAgent.h
@@ -35,7 +35,10 @@ public:
     void didProcessTask() override;
 
     // scheduler::TaskTimeObserver implementation
-    void ReportTaskTime(double startTime, double endTime) override;
+    void ReportTaskTime(
+        scheduler::TaskQueue*,

[Sami, 2016/09/12 17:49:09]

Could you make this const?

[altimin, 2016/09/14 11:23:14]

Not easily — we may need to disable this queue when queue is throttled as a
result of ReportTaskTime call.

Or are you okay with const_cast in RendererSchedulerImpl::ReportTaskTime?

[Sami, 2016/09/14 13:50:33]

I see. Let's keep this non-const then.

+        double startTime,
+        double endTime) override;
 
 private:
     Member<InspectedFrames> m_inspectedFrames;