Remove a race between sweepers and the free space skipping code (while iterating new space pointers)

src/store-buffer.h

 // Copyright 2011 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.
 
 #ifndef V8_STORE_BUFFER_H_
 #define V8_STORE_BUFFER_H_
 
 #include "allocation.h"
 #include "checks.h"
 #include "globals.h"
@@ skipping 162 matching lines @@
     Address end,
     ObjectSlotCallback slot_callback,
     bool clear_maps);
 
   void FindPointersToNewSpaceInMapsRegion(
     Address start,
     Address end,
     ObjectSlotCallback slot_callback,
     bool clear_maps);
 
-  void FindPointersToNewSpaceOnPage(
-    PagedSpace* space,
-    Page* page,
-    RegionCallback region_callback,
-    ObjectSlotCallback slot_callback,
-    bool clear_maps);
-
   void IteratePointersInStoreBuffer(ObjectSlotCallback slot_callback,
                                     bool clear_maps);
 
 #ifdef VERIFY_HEAP
-  void VerifyPointers(PagedSpace* space, RegionCallback region_callback);
   void VerifyPointers(LargeObjectSpace* space);
 #endif
 
   friend class StoreBufferRebuildScope;
   friend class DontMoveStoreBufferEntriesScope;
 };
 
 
 class StoreBufferRebuildScope {
  public:
@@ skipping 33 matching lines @@
   }
 
  private:
   StoreBuffer* store_buffer_;
   bool stored_state_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_STORE_BUFFER_H_