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

gm/drawlooper.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 "SkBlurMask.h"
 #include "SkBlurMaskFilter.h"
@@ skipping 13 matching lines @@
 
     virtual ~DrawLooperGM() {
         SkSafeUnref(fLooper);
     }
 
 protected:
     virtual SkISize onISize() {
         return SkISize::Make(520, 160);
     }
 
-    virtual SkString onShortName() SK_OVERRIDE {
+    SkString onShortName() SK_OVERRIDE {
         return SkString("drawlooper");
     }
 
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         this->init();
 
         SkPaint  paint;
         paint.setAntiAlias(true);
         sk_tool_utils::set_portable_typeface(&paint);
         paint.setTextSize(SkIntToScalar(72));
         paint.setLooper(fLooper);
 
         canvas->drawCircle(SkIntToScalar(50), SkIntToScalar(50),
                            SkIntToScalar(30), paint);
@@ skipping 45 matching lines @@
         fLooper = looperBuilder.detachLooper();
     }
 
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static skiagm::GM* MyFactory(void*) { return new DrawLooperGM; }
 static skiagm::GMRegistry reg(MyFactory);