849   static const int kHeaderSize = 0;  // Object does not take up any space.  variable
1216   static const int kHeaderSize = kMapOffset + kPointerSize;  variable
1844   static const int kHeaderSize = kElementsOffset + kPointerSize;  variable
1981   static const int kHeaderSize = kLengthOffset + kPointerSize;  variable
2821   static const int kHeaderSize = kLengthOffset + kPointerSize;  variable
2866   static const int kHeaderSize = kExternalPointerOffset + kPointerSize;  variable
3517   static const int kHeaderSize =  variable
4755   static const int kHeaderSize = kGlobalReceiverOffset + kPointerSize;  variable
5651   static const int kHeaderSize = String::kSize;  variable
5705   static const int kHeaderSize = String::kSize;  variable
6325   static const int kHeaderSize         = kPropertyListOffset + kPointerSize;  variable