Clean up the public interface of Map.

src/objects-inl.h

 // Copyright 2012 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 5002 matching lines @@
   WRITE_FIELD(this, kBitField3Offset, Smi::FromInt(value >> 1));
 }
 
 
 uint32_t Map::bit_field3() {
   Object* value = READ_FIELD(this, kBitField3Offset);
   return Smi::cast(value)->value();
 }
 
 
-void Map::ClearTransitions(Heap* heap, WriteBarrierMode mode) {
-  Object* back_pointer = GetBackPointer();
-
-  if (Heap::ShouldZapGarbage() && HasTransitionArray()) {
-    ZapTransitions();
-  }
-
-  WRITE_FIELD(this, kTransitionsOrBackPointerOffset, back_pointer);
-  CONDITIONAL_WRITE_BARRIER(
-      heap, this, kTransitionsOrBackPointerOffset, back_pointer, mode);
-}
-
-
 void Map::AppendDescriptor(Descriptor* desc) {
   DescriptorArray* descriptors = instance_descriptors();
   int number_of_own_descriptors = NumberOfOwnDescriptors();
   ASSERT(descriptors->number_of_descriptors() == number_of_own_descriptors);
   descriptors->Append(desc);
   SetNumberOfOwnDescriptors(number_of_own_descriptors + 1);
 }
 
 
 Object* Map::GetBackPointer() {
@@ skipping 25 matching lines @@
 
 
 bool Map::CanHaveMoreTransitions() {
   if (!HasTransitionArray()) return true;
   return FixedArray::SizeFor(transitions()->length() +
                              TransitionArray::kTransitionSize)
       <= Page::kMaxRegularHeapObjectSize;
 }
 
 
-void Map::SetTransition(int transition_index, Map* target) {
-  transitions()->SetTarget(transition_index, target);
-}
-
-
 Map* Map::GetTransition(int transition_index) {
   return transitions()->GetTarget(transition_index);
 }
 
 
 int Map::SearchTransition(Name* name) {
   if (HasTransitionArray()) return transitions()->Search(name);
   return TransitionArray::kNotFound;
 }
 
@@ skipping 2005 matching lines @@
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_