Fix up all the easy virtual ... SK_OVERRIDE cases.

experimental/SkiaExamples/SkExample.h

 /*
  * Copyright 2013 Google Inc.
  *
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  */
 
 #ifndef SkExample_DEFINED
@@ skipping 34 matching lines @@
     };
     SkExampleWindow(void* hwnd);
 
     // Changes the device type of the object.
     bool setupBackend(DeviceType type);
     void tearDownBackend();
 
     DeviceType getDeviceType() const { return fType; }
 
 protected:
-    virtual void draw(SkCanvas* canvas) SK_OVERRIDE;
+    void draw(SkCanvas* canvas) SK_OVERRIDE;
 
-    virtual void onSizeChange() SK_OVERRIDE;
+    void onSizeChange() SK_OVERRIDE;
 
 #ifdef SK_BUILD_FOR_WIN
-    virtual void onHandleInval(const SkIRect&) SK_OVERRIDE;
+    void onHandleInval(const SkIRect&) SK_OVERRIDE;
 #endif
 
     SkCanvas* createCanvas() SK_OVERRIDE;
 
 private:
     bool findNextMatch();  // Set example to the first one that matches FLAGS_match.
     void setupRenderTarget();
     bool onHandleChar(SkUnichar unichar) SK_OVERRIDE;
 
     DeviceType fType;
 
     SkExample* fCurrExample;
     const SkExample::Registry* fRegistry;
     GrContext* fContext;
     GrRenderTarget* fRenderTarget;
     AttachmentInfo fAttachmentInfo;
     const GrGLInterface* fInterface;
 
     typedef SkOSWindow INHERITED;
 };
 
 #endif