Revert of Remove serializer-specific hash table size heuristic.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 6f86e94e4cc0fdb9fc57f072da1e1abe574ddd68..d84690fbd48c6b3418663960916d7987a84f6dfc 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -2907,6 +2907,9 @@
   // number of elements. May be more than HashTable::kMaxCapacity.
   static inline int ComputeCapacity(int at_least_space_for);
 
+  // Use a different heuristic to compute capacity when serializing.
+  static inline int ComputeCapacityForSerialization(int at_least_space_for);
+
   // Tells whether k is a real key.  The hole and undefined are not allowed
   // as keys and can be used to indicate missing or deleted elements.
   bool IsKey(Object* k) {