Allocation sampling for paged/lo spaces

src/heap/incremental-marking.h

Index: src/heap/incremental-marking.h
diff --git a/src/heap/incremental-marking.h b/src/heap/incremental-marking.h
index 49778a1ebc23700ca926e4e3714a50270fe3284a..7eaec8fd7a9ec4ccae39eda287bccb58ace82919 100644
--- a/src/heap/incremental-marking.h
+++ b/src/heap/incremental-marking.h
@@ -216,10 +216,11 @@ class IncrementalMarking {
   }
 
  private:
-  class Observer : public InlineAllocationObserver {
+  class Observer : public AllocationObserver {
    public:
-    Observer(IncrementalMarking& incremental_marking, intptr_t step_size)
-        : InlineAllocationObserver(step_size),
+    Observer(IncrementalMarking& incremental_marking, Heap* heap,

[ofrobots, 2016/02/11 05:51:46]

`heap` parameter not used?

[mattloring, 2016/02/11 17:30:52]

Done.

+             intptr_t step_size)
+        : AllocationObserver(step_size),
           incremental_marking_(incremental_marking) {}
 
     void Step(int bytes_allocated, Address, size_t) override {