Fix virtual/override/final usage in the rest of Source/core/.

Source/core/testing/Internals.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 2218 matching lines @@
         AddOneFunction* self = new AddOneFunction(scriptState);
         return self->bindToV8Function();
     }
 
 private:
     explicit AddOneFunction(ScriptState* scriptState)
         : ScriptFunction(scriptState)
     {
     }
 
-    virtual ScriptValue call(ScriptValue value) override
+    ScriptValue call(ScriptValue value) override
     {
         v8::Local<v8::Value> v8Value = value.v8Value();
         ASSERT(v8Value->IsNumber());
         int intValue = v8Value.As<v8::Integer>()->Value();
         return ScriptValue(scriptState(), v8::Integer::New(scriptState()->isolate(), intValue + 1));
     }
 };
 
 } // namespace
 
@@ skipping 206 matching lines @@
     return ClientRectList::create(rects);
 }
 
 void Internals::setCapsLockState(bool enabled)
 {
     PlatformKeyboardEvent::setCurrentCapsLockState(enabled ?
         PlatformKeyboardEvent::OverrideCapsLockState::On : PlatformKeyboardEvent::OverrideCapsLockState::Off);
 }
 
 } // namespace blink