[DoNotSubmit] Added peak_memory_size to accounting-allocator.

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index 1c50d9b473b916ac115e58cd2ae6f9c92990beb4..519e3a2b15cec8601bd995f88548fd294d0f9d79 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -5234,6 +5234,7 @@ class V8_EXPORT HeapStatistics {
   size_t used_heap_size() { return used_heap_size_; }
   size_t heap_size_limit() { return heap_size_limit_; }
   size_t malloced_memory() { return malloced_memory_; }
+  size_t malloced_peak_memory() { return malloced_peak_memory_; }
   size_t does_zap_garbage() { return does_zap_garbage_; }
 
  private:
@@ -5244,6 +5245,7 @@ class V8_EXPORT HeapStatistics {
   size_t used_heap_size_;
   size_t heap_size_limit_;
   size_t malloced_memory_;
+  size_t malloced_peak_memory_;
   bool does_zap_garbage_;
 
   friend class V8;