Fix virtual/override/final usage in Source/bindings/.

Source/bindings/core/v8/ExceptionState.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 124 matching lines @@
     v8::Isolate* m_isolate;
 #if ENABLE(ASSERT)
     OnStackObjectChecker m_onStackObjectChecker;
 #endif
 };
 
 // Used if exceptions can/should not be directly thrown.
 class CORE_EXPORT NonThrowableExceptionState final : public ExceptionState {
 public:
     NonThrowableExceptionState(): ExceptionState(ExceptionState::UnknownContext, 0, 0, v8::Local<v8::Object>(), v8::Isolate::GetCurrent()) { }
-    virtual void throwDOMException(const ExceptionCode&, const String& message) override;
-    virtual void throwTypeError(const String& message = String()) override;
-    virtual void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String()) override;
-    virtual void throwRangeError(const String& message) override;
+    void throwDOMException(const ExceptionCode&, const String& message) override;
+    void throwTypeError(const String& message = String()) override;
+    void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String()) override;
+    void throwRangeError(const String& message) override;
 };
 
 // Used if any exceptions thrown are ignorable.
 class CORE_EXPORT TrackExceptionState final : public ExceptionState {
 public:
     TrackExceptionState(): ExceptionState(ExceptionState::UnknownContext, 0, 0, v8::Local<v8::Object>(), v8::Isolate::GetCurrent()) { }
-    virtual void throwDOMException(const ExceptionCode&, const String& message) override;
-    virtual void throwTypeError(const String& message = String()) override;
-    virtual void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String()) override;
-    virtual void throwRangeError(const String& message) override;
+    void throwDOMException(const ExceptionCode&, const String& message) override;
+    void throwTypeError(const String& message = String()) override;
+    void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String()) override;
+    void throwRangeError(const String& message) override;
 };
 
 } // namespace blink
 
 #endif // ExceptionState_h