Index: third_party/WebKit/public/platform/scheduler/renderer/renderer_scheduler.h |
diff --git a/third_party/WebKit/public/platform/scheduler/renderer/renderer_scheduler.h b/third_party/WebKit/public/platform/scheduler/renderer/renderer_scheduler.h |
index aef2cf3f0557dc5a4d06838cd1353fa5b819d4f2..e10aa67078f4e41d4dbf6c243e38fccb3ecfa7c9 100644 |
--- a/third_party/WebKit/public/platform/scheduler/renderer/renderer_scheduler.h |
+++ b/third_party/WebKit/public/platform/scheduler/renderer/renderer_scheduler.h |
@@ -186,6 +186,10 @@ class BLINK_PLATFORM_EXPORT RendererScheduler : public ChildScheduler { |
// https://developers.google.com/web/tools/chrome-devtools/profile/evaluate-performance/rail |
virtual void SetRAILModeObserver(RAILModeObserver* observer) = 0; |
+ // Returns whether or not the main thread appears unresponsive, based on the |
+ // length and frequency of recent main thread tasks. |
+ virtual bool MainThreadSeemsUnresponsive() const = 0; |
+ |
protected: |
RendererScheduler(); |
DISALLOW_COPY_AND_ASSIGN(RendererScheduler); |