| Index: src/v8-counters.h | 
| diff --git a/src/v8-counters.h b/src/v8-counters.h | 
| index c810cbac798ead2fb7554c282654ad045b6d4980..3b9e0c5d9560d07a8030a3a21e25ce27980c8a16 100644 | 
| --- a/src/v8-counters.h | 
| +++ b/src/v8-counters.h | 
| @@ -63,12 +63,16 @@ namespace internal { | 
| V8.MemoryExternalFragmentationMapSpace)                          \ | 
| HP(external_fragmentation_cell_space,                               \ | 
| V8.MemoryExternalFragmentationCellSpace)                         \ | 
| +  HP(external_fragmentation_js_global_property_cell_space,            \ | 
| +     V8.MemoryExternalFragmentationJSGlobalPropertyCellSpace)         \ | 
| HP(external_fragmentation_lo_space,                                 \ | 
| V8.MemoryExternalFragmentationLoSpace)                           \ | 
| HP(heap_fraction_map_space,                                         \ | 
| V8.MemoryHeapFractionMapSpace)                                   \ | 
| HP(heap_fraction_cell_space,                                        \ | 
| V8.MemoryHeapFractionCellSpace)                                  \ | 
| +  HP(heap_fraction_js_global_property_cell_space,                     \ | 
| +     V8.MemoryHeapFractionJSGlobalPropertyCellSpace)                  \ | 
|  | 
|  | 
| #define HISTOGRAM_MEMORY_LIST(HM)                                     \ | 
| @@ -77,7 +81,9 @@ namespace internal { | 
| HM(heap_sample_map_space_committed,                                 \ | 
| V8.MemoryHeapSampleMapSpaceCommitted)                            \ | 
| HM(heap_sample_cell_space_committed,                                \ | 
| -     V8.MemoryHeapSampleCellSpaceCommitted) | 
| +     V8.MemoryHeapSampleCellSpaceCommitted)                           \ | 
| +  HM(heap_sample_js_global_property_cell_space_committed,             \ | 
| +     V8.MemoryHeapSampleJSGlobalPropertyCellSpaceCommitted)           \ | 
|  | 
|  | 
| // WARNING: STATS_COUNTER_LIST_* is a very large macro that is causing MSVC | 
| @@ -297,6 +303,12 @@ namespace internal { | 
| SC(cell_space_bytes_available, V8.MemoryCellSpaceBytesAvailable)    \ | 
| SC(cell_space_bytes_committed, V8.MemoryCellSpaceBytesCommitted)    \ | 
| SC(cell_space_bytes_used, V8.MemoryCellSpaceBytesUsed)              \ | 
| +  SC(js_global_property_cell_space_bytes_available,                   \ | 
| +     V8.MemoryJSGlobalPropertyCellSpaceBytesAvailable)                \ | 
| +  SC(js_global_property_cell_space_bytes_committed,                   \ | 
| +     V8.MemoryJSGlobalPropertyCellSpaceBytesCommitted)                \ | 
| +  SC(js_global_property_cell_space_bytes_used,                        \ | 
| +     V8.MemoryJSGlobalPropertyCellSpaceBytesUsed)                     \ | 
| SC(lo_space_bytes_available, V8.MemoryLoSpaceBytesAvailable)        \ | 
| SC(lo_space_bytes_committed, V8.MemoryLoSpaceBytesCommitted)        \ | 
| SC(lo_space_bytes_used, V8.MemoryLoSpaceBytesUsed) | 
|  |