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

gm/extractbitmap.cpp

 /*
  * Copyright 2011 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 14 matching lines @@
     paint.setColor(SK_ColorBLUE);
     canvas.drawCircle(SkIntToScalar(W)/2, SkIntToScalar(H)/2, SkIntToScalar(W)/2, paint);
 }
 
 class ExtractBitmapGM : public GM {
 public:
     ExtractBitmapGM() {}
 
 protected:
     // overrides from SkEventSink
-    virtual SkString onShortName() SK_OVERRIDE {
+    SkString onShortName() SK_OVERRIDE {
         return SkString("extractbitmap");
     }
 
-    virtual SkISize onISize() SK_OVERRIDE {
+    SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(600, 600);
     }
 
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         SkBitmap bitmap;
         create_bitmap(&bitmap);
         int x = bitmap.width() / 2;
         int y = bitmap.height() / 2;
 
         canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
 
         canvas->drawBitmap(bitmap, 0, 0);
 
         {
@@ skipping 23 matching lines @@
 private:
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static GM* MyFactory(void*) { return new ExtractBitmapGM; }
 static GMRegistry reg(MyFactory);
 
 }