Allow IdleNotification to trigger Scavenges.

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index 1f7d8784f6b8fbf104e121212fc6e5c2b28a9196..a9e4fe733aa66bff19b41191aed9e57a1d0b0570 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -4312,6 +4312,10 @@ bool Heap::IdleNotification(int idle_time_in_ms) {
       static_cast<size_t>(tracer()->MarkCompactSpeedInBytesPerMillisecond());
   heap_state.incremental_marking_speed_in_bytes_per_ms = static_cast<size_t>(
       tracer()->IncrementalMarkingSpeedInBytesPerMillisecond());
+  heap_state.scavenge_speed_in_bytes_per_ms =
+      static_cast<size_t>(tracer()->ScavengeSpeedInBytesPerMillisecond());
+  heap_state.available_new_space_memory = new_space_.Available();
+  heap_state.new_space_capacity = new_space_.Capacity();
 
   GCIdleTimeAction action =
       gc_idle_time_handler_.Compute(idle_time_in_ms, heap_state);