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

gm/bitmappremul.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
@@ skipping 95 matching lines @@
 public:
     BitmapPremulGM() {
         this->setBGColor(SK_ColorWHITE);
     }
 
 protected:
     SkString onShortName() SK_OVERRIDE {
         return SkString("bitmap_premul");
     }
 
-    virtual SkISize onISize() SK_OVERRIDE {
+    SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(SLIDE_SIZE * 2, SLIDE_SIZE * 2);
     }
 
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         SkScalar slideSize = SkIntToScalar(SLIDE_SIZE);
         canvas->drawBitmap(make_argb8888_gradient(), 0, 0);
         canvas->drawBitmap(make_argb4444_gradient(), slideSize, 0);
         canvas->drawBitmap(make_argb8888_stripes(), 0, slideSize);
         canvas->drawBitmap(make_argb4444_stripes(), slideSize, slideSize);
     }
 
 private:
     typedef GM INHERITED;
 };
 
 DEF_GM( return new BitmapPremulGM; )
 }