Consistently use only one of virtual/OVERRIDE/FINAL.

src/ic/ic.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_IC_H_
 #define V8_IC_H_
 
 #include "src/ic/ic-state.h"
 #include "src/macro-assembler.h"
 
@@ skipping 415 matching lines @@
 
   Handle<Code> slow_stub() const {
     if (kind() == Code::LOAD_IC) {
       return isolate()->builtins()->LoadIC_Slow();
     } else {
       DCHECK_EQ(Code::KEYED_LOAD_IC, kind());
       return isolate()->builtins()->KeyedLoadIC_Slow();
     }
   }
 
-  virtual Handle<Code> megamorphic_stub() OVERRIDE;
+  Handle<Code> megamorphic_stub() OVERRIDE;
 
   // Update the inline cache and the global stub cache based on the
   // lookup result.
   void UpdateCaches(LookupIterator* lookup);
 
   virtual Handle<Code> CompileHandler(LookupIterator* lookup,
                                       Handle<Object> unused,
                                       CacheHolderFlag cache_holder) OVERRIDE;
 
  private:
@@ skipping 100 matching lines @@
 
   MUST_USE_RESULT MaybeHandle<Object> Store(
       Handle<Object> object, Handle<Name> name, Handle<Object> value,
       JSReceiver::StoreFromKeyed store_mode =
           JSReceiver::CERTAINLY_NOT_STORE_FROM_KEYED);
 
   bool LookupForWrite(LookupIterator* it, Handle<Object> value,
                       JSReceiver::StoreFromKeyed store_mode);
 
  protected:
-  virtual Handle<Code> megamorphic_stub() OVERRIDE;
+  Handle<Code> megamorphic_stub() OVERRIDE;
 
   // Stub accessors.
   Handle<Code> generic_stub() const;
 
   Handle<Code> slow_stub() const;
 
   virtual Handle<Code> pre_monomorphic_stub() const {
     return pre_monomorphic_stub(isolate(), strict_mode());
   }
 
@@ skipping 193 matching lines @@
 
 // Support functions for interceptor handlers.
 DECLARE_RUNTIME_FUNCTION(LoadPropertyWithInterceptorOnly);
 DECLARE_RUNTIME_FUNCTION(LoadPropertyWithInterceptor);
 DECLARE_RUNTIME_FUNCTION(LoadElementWithInterceptor);
 DECLARE_RUNTIME_FUNCTION(StorePropertyWithInterceptor);
 }
 }  // namespace v8::internal
 
 #endif  // V8_IC_H_