Don't filter store buffer after sweeping.

src/heap/spaces.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_HEAP_SPACES_H_
 #define V8_HEAP_SPACES_H_
 
 #include "src/allocation.h"
 #include "src/base/atomicops.h"
 #include "src/base/bits.h"
@@ skipping 2726 matching lines @@
   int PageCount() { return page_count_; }
 
   // Finds an object for a given address, returns a Smi if it is not found.
   // The function iterates through all objects in this space, may be slow.
   Object* FindObject(Address a);
 
   // Finds a large object page containing the given address, returns NULL
   // if such a page doesn't exist.
   LargePage* FindPage(Address a);
 
+  // Clears the marking state of live objects.
+  void ClearMarkingStateOfLiveObjects();
+
   // Frees unmarked objects.
   void FreeUnmarkedObjects();
 
   // Checks whether a heap object is in this space; O(1).
   bool Contains(HeapObject* obj);
 
   // Checks whether the space is empty.
   bool IsEmpty() { return first_page_ == NULL; }
 
   LargePage* first_page() { return first_page_; }
@@ skipping 68 matching lines @@
     count = 0;
   }
   // Must be small, since an iteration is used for lookup.
   static const int kMaxComments = 64;
 };
 #endif
 }
 }  // namespace v8::internal
 
 #endif  // V8_HEAP_SPACES_H_