Capacity returns allocatable memory and TotalCapacity returns allocatable plus non-allocatable memo…

src/heap/heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/base/bits.h"
 #include "src/base/once.h"
@@ skipping 1264 matching lines @@
 
     HeapObjectIterator data_it(heap->old_data_space());
     for (HeapObject* object = data_it.Next(); object != NULL;
          object = data_it.Next())
       object->Iterate(&v);
 }
 #endif  // VERIFY_HEAP
 
 
 void Heap::CheckNewSpaceExpansionCriteria() {
-  if (new_space_.Capacity() < new_space_.MaximumCapacity() &&
-      survived_since_last_expansion_ > new_space_.Capacity()) {
+  if (new_space_.TotalCapacity() < new_space_.MaximumCapacity() &&
+      survived_since_last_expansion_ > new_space_.TotalCapacity()) {
     // Grow the size of new space if there is room to grow, enough data
     // has survived scavenge since the last expansion and we are not in
     // high promotion mode.
     new_space_.Grow();
     survived_since_last_expansion_ = 0;
   }
 }
 
 
 static bool IsUnscavengedHeapObject(Heap* heap, Object** p) {
@@ skipping 4841 matching lines @@
       static_cast<int>(object_sizes_last_time_[index]));
   CODE_AGE_LIST_COMPLETE(ADJUST_LAST_TIME_OBJECT_COUNT)
 #undef ADJUST_LAST_TIME_OBJECT_COUNT
 
   MemCopy(object_counts_last_time_, object_counts_, sizeof(object_counts_));
   MemCopy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_));
   ClearObjectStats();
 }
 }
 }  // namespace v8::internal