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 b4cd79b47c13670f035aa731e61ce42c128b765b..3c68b79b6f552f08f0f04b95b3f8ecd7ada91f99 100644 |
--- a/third_party/WebKit/public/platform/scheduler/renderer/renderer_scheduler.h |
+++ b/third_party/WebKit/public/platform/scheduler/renderer/renderer_scheduler.h |
@@ -185,6 +185,11 @@ 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. To be called from the |
+ // compositor thread. |
+ virtual bool MainThreadSeemsUnresponsive() = 0; |
+ |
protected: |
RendererScheduler(); |
DISALLOW_COPY_AND_ASSIGN(RendererScheduler); |