Update more directories under src/ to follow C++11 style rule for {virtual,override}.

src/animator/SkDisplayMath.h

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkDisplayMath_DEFINED
 #define SkDisplayMath_DEFINED
 
 #include "SkDisplayable.h"
 #include "SkMemberInfo.h"
 #include "SkRandom.h"
 
 class SkDisplayMath : public SkDisplayable {
     DECLARE_DISPLAY_MEMBER_INFO(Math);
-    virtual void executeFunction(SkDisplayable* , int index,
+    void executeFunction(SkDisplayable* , int index,
         SkTDArray<SkScriptValue>& parameters, SkDisplayTypes type,
         SkScriptValue* ) override;
     const SkFunctionParamType* getFunctionsParameters() override;
     bool getProperty(int index, SkScriptValue* value) const override;
 private:
     mutable SkRandom fRandom;
     static const SkScalar gConstants[];
     static const SkFunctionParamType fFunctionParameters[];
 
 };
 
 #endif // SkDisplayMath_DEFINED