[heap] Scalable slots buffer for parallel compaction.

src/heap/slots-buffer.h

Index: src/heap/slots-buffer.h
diff --git a/src/heap/slots-buffer.h b/src/heap/slots-buffer.h
index 586ec3f929730d953df3400b1c64a11c0bbc8fe5..dc6c92296375e4428ecee0f2d2818112921f0445 100644
--- a/src/heap/slots-buffer.h
+++ b/src/heap/slots-buffer.h
@@ -122,14 +122,6 @@ class SlotsBuffer {
     return buffer != NULL && buffer->chain_length_ >= kChainLengthThreshold;
   }
 
-  INLINE(static bool AddToSynchronized(SlotsBufferAllocator* allocator,
-                                       SlotsBuffer** buffer_address,
-                                       base::Mutex* buffer_mutex,
-                                       ObjectSlot slot, AdditionMode mode)) {
-    base::LockGuard<base::Mutex> lock_guard(buffer_mutex);
-    return AddTo(allocator, buffer_address, slot, mode);
-  }
-
   INLINE(static bool AddTo(SlotsBufferAllocator* allocator,
                            SlotsBuffer** buffer_address, ObjectSlot slot,
                            AdditionMode mode)) {
@@ -148,11 +140,6 @@ class SlotsBuffer {
 
   static bool IsTypedSlot(ObjectSlot slot);
 
-  static bool AddToSynchronized(SlotsBufferAllocator* allocator,
-                                SlotsBuffer** buffer_address,
-                                base::Mutex* buffer_mutex, SlotType type,
-                                Address addr, AdditionMode mode);
-
   static bool AddTo(SlotsBufferAllocator* allocator,
                     SlotsBuffer** buffer_address, SlotType type, Address addr,
                     AdditionMode mode);