Integrate map marking into static marking visitor.

src/incremental-marking-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 107 matching lines @@
   marking_deque_.UnshiftGrey(obj);
 }
 
 
 void IncrementalMarking::WhiteToGreyAndPush(HeapObject* obj, MarkBit mark_bit) {
   Marking::WhiteToGrey(mark_bit);
   marking_deque_.PushGrey(obj);
 }
 
 
-bool IncrementalMarking::MarkObjectAndPush(HeapObject* obj) {
-  MarkBit mark_bit = Marking::MarkBitFrom(obj);
-  if (!mark_bit.Get()) {
-    WhiteToGreyAndPush(obj, mark_bit);
-    return true;
-  }
-  return false;
-}
-
-
-bool IncrementalMarking::MarkObjectWithoutPush(HeapObject* obj) {
-  MarkBit mark_bit = Marking::MarkBitFrom(obj);
-  if (!mark_bit.Get()) {
-    mark_bit.Set();
-    MemoryChunk::IncrementLiveBytesFromGC(obj->address(), obj->Size());
-    return true;
-  }
-  return false;
-}
-
-
 } }  // namespace v8::internal
 
 #endif  // V8_INCREMENTAL_MARKING_INL_H_