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

bench/LineBench.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Benchmark.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
@@ skipping 20 matching lines @@
         fDoAA = doAA;
         fName.printf("lines_%g_%s", width, doAA ? "AA" : "BW");
 
         SkRandom rand;
         for (int i = 0; i < PTS; ++i) {
             fPts[i].set(rand.nextUScalar1() * 640, rand.nextUScalar1() * 480);
         }
     }
 
 protected:
-    virtual const char* onGetName() SK_OVERRIDE {
+    const char* onGetName() SK_OVERRIDE {
         return fName.c_str();
     }
 
-    virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
         SkPaint paint;
         this->setupPaint(&paint);
 
         paint.setStyle(SkPaint::kStroke_Style);
         paint.setAntiAlias(fDoAA);
         paint.setStrokeWidth(fStrokeWidth);
 
         for (int i = 0; i < loops; i++) {
             canvas->drawPoints(SkCanvas::kLines_PointMode, PTS, fPts, paint);
         }
     }
 
 private:
     typedef Benchmark INHERITED;
 };
 
 DEF_BENCH(return new LineBench(0,            false);)
 DEF_BENCH(return new LineBench(SK_Scalar1,   false);)
 DEF_BENCH(return new LineBench(0,            true);)
 DEF_BENCH(return new LineBench(SK_Scalar1/2, true);)
 DEF_BENCH(return new LineBench(SK_Scalar1,   true);)