Allocation sampling for paged/lo spaces

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index 9b0198f82578e25064fa94207604ae14537188c7..b683df38ac3895034b929fa4421890115937acf0 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -53,10 +53,10 @@ struct Heap::StrongRootsList {
   StrongRootsList* next;
 };
 
-class IdleScavengeObserver : public InlineAllocationObserver {
+class IdleScavengeObserver : public AllocationObserver {
  public:
   IdleScavengeObserver(Heap& heap, intptr_t step_size)
-      : InlineAllocationObserver(step_size), heap_(heap) {}
+      : AllocationObserver(&heap, step_size), heap_(heap) {}
 
   void Step(int bytes_allocated, Address, size_t) override {
     heap_.ScheduleIdleScavengeIfNeeded(bytes_allocated);