Pipe impl_latency_takes_priority_ to the RenderScheduler.

components/scheduler/renderer/renderer_scheduler_impl.h

Index: components/scheduler/renderer/renderer_scheduler_impl.h
diff --git a/components/scheduler/renderer/renderer_scheduler_impl.h b/components/scheduler/renderer/renderer_scheduler_impl.h
index faf44de646f55cab1a5575fea0d86e28dd23a485..00948a2473658f4a3f971376e68fac7a2c8ad945 100644
--- a/components/scheduler/renderer/renderer_scheduler_impl.h
+++ b/components/scheduler/renderer/renderer_scheduler_impl.h
@@ -205,6 +205,8 @@ class SCHEDULER_EXPORT RendererSchedulerImpl : public RendererScheduler,
   int pending_main_thread_input_event_count_;
   bool awaiting_touch_start_response_;
 
+  bool begin_main_frame_on_critical_path_;
+
   // Variables in this (contiguous) block are only accessed from the compositor
   // thread.
   blink::WebInputEvent::Type last_input_type_;