Revert the commits adding new GC-related APIs.

src/api.cc

 // 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 5907 matching lines @@
                         RetainedObjectInfo* info) {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(exported_isolate);
   ASSERT(isolate == i::Isolate::Current());
   if (IsDeadCheck(isolate, "v8::V8::AddObjectGroup()")) return;
   STATIC_ASSERT(sizeof(Persistent<Value>) == sizeof(i::Object**));
   isolate->global_handles()->AddObjectGroup(
       reinterpret_cast<i::Object***>(objects), length, info);
 }
 
 
-void V8::SetObjectGroupId(Isolate* exported_isolate,
-                          const Persistent<Value>& object,
-                          UniqueId id) {
-  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(exported_isolate);
-  isolate->global_handles()->SetObjectGroupId(
-      reinterpret_cast<i::Object**>(*object), id);
-}
-
-
-void V8::SetRetainedObjectInfo(Isolate* exported_isolate,
-                               UniqueId id,
-                               RetainedObjectInfo* info) {
-  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(exported_isolate);
-  isolate->global_handles()->SetRetainedObjectInfo(id, info);
-}
-
-
-void V8::SetObjectGroupRepresentative(
-      Isolate* exported_isolate,
-      UniqueId id,
-      const Persistent<Object>& object) {
-  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(exported_isolate);
-  isolate->global_handles()->SetObjectGroupRepresentative(
-      id,
-      i::Handle<i::HeapObject>::cast(Utils::OpenHandle(*object)).location());
-}
-
-
 void V8::AddImplicitReferences(Persistent<Object> parent,
                                Persistent<Value>* children,
                                size_t length) {
   i::Isolate* isolate = i::Isolate::Current();
   if (IsDeadCheck(isolate, "v8::V8::AddImplicitReferences()")) return;
   STATIC_ASSERT(sizeof(Persistent<Value>) == sizeof(i::Object**));
   isolate->global_handles()->AddImplicitReferences(
       i::Handle<i::HeapObject>::cast(Utils::OpenHandle(*parent)).location(),
       reinterpret_cast<i::Object***>(children), length);
 }
 
 
-void V8::AddImplicitReference(Isolate* exported_isolate,
-                              UniqueId id,
-                              const Persistent<Value>& object) {
-  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(exported_isolate);
-  isolate->global_handles()
-      ->AddImplicitReference(id, reinterpret_cast<i::Object**>(*object));
-}
-
-
 intptr_t Isolate::AdjustAmountOfExternalAllocatedMemory(
     intptr_t change_in_bytes) {
   i::Heap* heap = reinterpret_cast<i::Isolate*>(this)->heap();
   return heap->AdjustAmountOfExternalAllocatedMemory(change_in_bytes);
 }
 
 
 intptr_t V8::AdjustAmountOfExternalAllocatedMemory(intptr_t change_in_bytes) {
   i::Isolate* isolate = i::Isolate::UncheckedCurrent();
   if (isolate == NULL || !isolate->IsInitialized() ||
@@ skipping 1428 matching lines @@
 
   v->VisitPointers(blocks_.first(), first_block_limit_);
 
   for (int i = 1; i < blocks_.length(); i++) {
     v->VisitPointers(blocks_[i], &blocks_[i][kHandleBlockSize]);
   }
 }
 
 
 } }  // namespace v8::internal