A64: Synchronize with r18444.

src/heap-profiler.cc

Index: src/heap-profiler.cc
diff --git a/src/heap-profiler.cc b/src/heap-profiler.cc
index 6ae62723a7081eed316344cbe64042660296ef45..7413b6e6886a18af5dc391ec32a05d686d467d7c 100644
--- a/src/heap-profiler.cc
+++ b/src/heap-profiler.cc
@@ -118,7 +118,7 @@ void HeapProfiler::StartHeapObjectsTracking(bool track_allocations) {
   is_tracking_object_moves_ = true;
   ASSERT(!is_tracking_allocations());
   if (track_allocations) {
-    allocation_tracker_.Reset(new AllocationTracker(*ids_, *names_));
+    allocation_tracker_.Reset(new AllocationTracker(ids_.get(), names_.get()));
     heap()->DisableInlineAllocation();
   }
 }
@@ -212,4 +212,10 @@ Handle<HeapObject> HeapProfiler::FindHeapObjectById(SnapshotObjectId id) {
 }
 
 
+void HeapProfiler::ClearHeapObjectMap() {
+  ids_.Reset(new HeapObjectsMap(heap()));
+  if (!is_tracking_allocations()) is_tracking_object_moves_ = false;
+}
+
+
 } }  // namespace v8::internal