[heap] Remove unused IntrusiveMarking class.

src/heap/heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/base/bits.h"
 #include "src/base/once.h"
@@ skipping 95 matching lines @@
       unflattened_strings_length_(0),
 #ifdef DEBUG
       allocation_timeout_(0),
 #endif  // DEBUG
       old_generation_allocation_limit_(initial_old_generation_size_),
       old_gen_exhausted_(false),
       optimize_for_memory_usage_(false),
       inline_allocation_disabled_(false),
       store_buffer_rebuilder_(store_buffer()),
       hidden_string_(NULL),
-      gc_safe_size_of_old_object_(NULL),
       total_regexp_code_generated_(0),
       tracer_(this),
       high_survival_rate_period_length_(0),
       promoted_objects_size_(0),
       promotion_ratio_(0),
       semi_space_copied_object_size_(0),
       previous_semi_space_copied_object_size_(0),
       semi_space_copied_rate_(0),
       nodes_died_in_new_space_(0),
       nodes_copied_in_new_space_(0),
@@ skipping 113 matching lines @@
   return total;
 }
 
 
 bool Heap::HasBeenSetUp() {
   return old_space_ != NULL && code_space_ != NULL && map_space_ != NULL &&
          lo_space_ != NULL;
 }
 
 
-int Heap::GcSafeSizeOfOldObject(HeapObject* object) {
-  if (IntrusiveMarking::IsMarked(object)) {
-    return IntrusiveMarking::SizeOfMarkedObject(object);
-  }
-  return object->SizeFromMap(object->map());
-}
-
-
 GarbageCollector Heap::SelectGarbageCollector(AllocationSpace space,
                                               const char** reason) {
   // Is global GC requested?
   if (space != NEW_SPACE) {
     isolate_->counters()->gc_compactor_caused_by_request()->Increment();
     *reason = "GC in old space requested";
     return MARK_COMPACTOR;
   }
 
   if (FLAG_gc_global || (FLAG_stress_compaction && (gc_count_ & 1) != 0)) {
@@ skipping 5484 matching lines @@
   // size) and old-space-size if set or the initial values of semispace_size_
   // and old_generation_size_ otherwise.
   if (!configured_) {
     if (!ConfigureHeapDefault()) return false;
   }
 
   concurrent_sweeping_enabled_ = FLAG_concurrent_sweeping;
 
   base::CallOnce(&initialize_gc_once, &InitializeGCOnce);
 
-  MarkMapPointersAsEncoded(false);
-
   // Set up memory allocator.
   if (!isolate_->memory_allocator()->SetUp(MaxReserved(), MaxExecutableSize()))
     return false;
 
   // Set up new space.
   if (!new_space_.SetUp(reserved_semispace_size_, max_semi_space_size_)) {
     return false;
   }
   new_space_top_after_last_gc_ = new_space()->top();
 
@@ skipping 1147 matching lines @@
     *object_type = "CODE_TYPE";                                                \
     *object_sub_type = "CODE_AGE/" #name;                                      \
     return true;
     CODE_AGE_LIST_COMPLETE(COMPARE_AND_RETURN_NAME)
 #undef COMPARE_AND_RETURN_NAME
   }
   return false;
 }
 }  // namespace internal
 }  // namespace v8