Revert 9763 after build bot failures.

src/serialize.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 744 matching lines @@
 
 
 void Deserializer::ReadChunk(Object** current,
                              Object** limit,
                              int source_space,
                              Address current_object_address) {
   Isolate* const isolate = isolate_;
   bool write_barrier_needed = (current_object_address != NULL &&
                                source_space != NEW_SPACE &&
                                source_space != CELL_SPACE &&
-                               source_space == OLD_DATA_SPACE);
+                               source_space != OLD_DATA_SPACE);
   while (current < limit) {
     int data = source_->Get();
     switch (data) {
 #define CASE_STATEMENT(where, how, within, space_number)                       \
       case where + how + within + space_number:                                \
       ASSERT((where & ~kPointedToMask) == 0);                                  \
       ASSERT((how & ~kHowToCodeMask) == 0);                                    \
       ASSERT((within & ~kWhereToPointMask) == 0);                              \
       ASSERT((space_number & ~kSpaceMask) == 0);
 
@@ skipping 865 matching lines @@
       fullness_[space] = RoundUp(fullness_[space], Page::kPageSize);
     }
   }
   int allocation_address = fullness_[space];
   fullness_[space] = allocation_address + size;
   return allocation_address;
 }
 
 
 } }  // namespace v8::internal