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

bench/ChartBench.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 "Benchmark.h"
 #include "SkCanvas.h"
 #include "SkPaint.h"
@@ skipping 76 matching lines @@
 class ChartBench : public Benchmark {
 public:
     ChartBench(bool aa) {
         fShift = 0;
         fAA = aa;
         fSize.fWidth = -1;
         fSize.fHeight = -1;
     }
 
 protected:
-    virtual const char* onGetName() SK_OVERRIDE {
+    const char* onGetName() SK_OVERRIDE {
         if (fAA) {
             return "chart_aa";
         } else {
             return "chart_bw";
         }
     }
 
-    virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
         bool sizeChanged = false;
         if (canvas->getDeviceSize() != fSize) {
             fSize = canvas->getDeviceSize();
             sizeChanged = true;
         }
 
         SkScalar ySpread = SkIntToScalar(fSize.fHeight / 20);
 
         SkScalar height = SkIntToScalar(fSize.fHeight);
         if (sizeChanged) {
@@ skipping 67 matching lines @@
     SkTDArray<SkScalar> fData[kNumGraphs];
     bool                fAA;
 
     typedef Benchmark INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_BENCH( return new ChartBench(true); )
 DEF_BENCH( return new ChartBench(false); )