Consistently use only one of virtual/OVERRIDE/FINAL.

src/serialize.h

 // 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.
 
 #ifndef V8_SERIALIZE_H_
 #define V8_SERIALIZE_H_
 
 #include "src/compiler.h"
 #include "src/hashmap.h"
 #include "src/heap-profiler.h"
@@ skipping 577 matching lines @@
 };
 
 
 class CodeAddressMap;
 
 // There can be only one serializer per V8 process.
 class Serializer : public SerializerDeserializer {
  public:
   Serializer(Isolate* isolate, SnapshotByteSink* sink);
   ~Serializer();
-  virtual void VisitPointers(Object** start, Object** end) OVERRIDE;
+  void VisitPointers(Object** start, Object** end) OVERRIDE;
 
   void EncodeReservations(List<SerializedData::Reservation>* out) const;
 
   Isolate* isolate() const { return isolate_; }
 
   BackReferenceMap* back_reference_map() { return &back_reference_map_; }
   RootIndexMap* root_index_map() { return &root_index_map_; }
 
  protected:
   class ObjectSerializer : public ObjectVisitor {
@@ skipping 164 matching lines @@
     // Clear the cache of objects used by the partial snapshot.  After the
     // strong roots have been serialized we can create a partial snapshot
     // which will repopulate the cache with objects needed by that partial
     // snapshot.
     isolate->set_serialize_partial_snapshot_cache_length(0);
     InitializeCodeAddressMap();
   }
 
   // The StartupSerializer has to serialize the root array, which is slightly
   // different.
-  virtual void VisitPointers(Object** start, Object** end) OVERRIDE;
+  void VisitPointers(Object** start, Object** end) OVERRIDE;
 
   // Serialize the current state of the heap.  The order is:
   // 1) Strong references.
   // 2) Partial snapshot cache.
   // 3) Weak references (e.g. the string table).
   virtual void SerializeStrongReferences();
   virtual void SerializeObject(HeapObject* o, HowToCode how_to_code,
                                WhereToPoint where_to_point, int skip) OVERRIDE;
   void SerializeWeakReferences();
   void Serialize() {
@@ skipping 139 matching lines @@
   static const int kCheckSumOffset = 0;
   static const int kNumInternalizedStringsOffset = 1;
   static const int kReservationsOffset = 2;
   static const int kNumCodeStubKeysOffset = 3;
   static const int kPayloadLengthOffset = 4;
   static const int kHeaderSize = (kPayloadLengthOffset + 1) * kIntSize;
 };
 } }  // namespace v8::internal
 
 #endif  // V8_SERIALIZE_H_