Add malloced and peak malloced to OOM handler

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index e7d7eedc2f49abf6eaff07a14c9180e5a602bb93..9d6204df2a53974b81b37bb965a1ae2f288aa7ea 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -5055,7 +5055,7 @@ void Heap::RecordStats(HeapStats* stats, bool take_snapshot) {
   *stats->start_marker = HeapStats::kStartMarker;
   *stats->end_marker = HeapStats::kEndMarker;
   *stats->new_space_size = new_space_.SizeAsInt();
-  *stats->new_space_capacity = static_cast<int>(new_space_.Capacity());
+  *stats->new_space_capacity = new_space_.Capacity();
   *stats->old_space_size = old_space_->SizeOfObjects();
   *stats->old_space_capacity = old_space_->Capacity();
   *stats->code_space_size = code_space_->SizeOfObjects();
@@ -5068,7 +5068,8 @@ void Heap::RecordStats(HeapStats* stats, bool take_snapshot) {
   *stats->memory_allocator_capacity =
       memory_allocator()->Size() + memory_allocator()->Available();
   *stats->os_error = base::OS::GetLastError();
-  memory_allocator()->Available();
+  *stats->malloced_memory = isolate_->allocator()->GetCurrentMemoryUsage();
+  *stats->malloced_peak_memory = isolate_->allocator()->GetMaxMemoryUsage();
   if (take_snapshot) {
     HeapIterator iterator(this);
     for (HeapObject* obj = iterator.next(); obj != NULL;