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

bench/MemcpyBench.cpp

 /*
  * Copyright 2014 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 "SkRandom.h"
 #include "SkTemplates.h"
 #include "SkUtils.h"
 
 template <typename Memcpy32>
 class Memcpy32Bench : public Benchmark {
 public:
     explicit Memcpy32Bench(int count, Memcpy32 memcpy32, const char* name)
         : fCount(count)
         , fMemcpy32(memcpy32)
         , fName(SkStringPrintf("%s_%d", name, count)) {}
 
-    virtual const char* onGetName() SK_OVERRIDE {
+    const char* onGetName() SK_OVERRIDE {
         return fName.c_str();
     }
 
-    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
+    bool isSuitableFor(Backend backend) SK_OVERRIDE {
         return backend == kNonRendering_Backend;
     }
 
-    virtual void onPreDraw() SK_OVERRIDE {
+    void onPreDraw() SK_OVERRIDE {
         fDst.reset(fCount);
         fSrc.reset(fCount);
 
         SkRandom rand;
         for (int i = 0; i < fCount; i++) {
             fSrc[i] = rand.nextU();
         }
     }
 
-    virtual void onDraw(const int loops, SkCanvas*) SK_OVERRIDE {
+    void onDraw(const int loops, SkCanvas*) SK_OVERRIDE {
         for (int i = 0; i < loops; i++) {
             fMemcpy32(fDst, fSrc, fCount);
         }
     }
 
 private:
     SkAutoTMalloc<uint32_t> fDst, fSrc;
 
     int fCount;
     Memcpy32 fMemcpy32;
@@ skipping 18 matching lines @@
 BENCH(memcpy32_memcpy, 100000)
 
 // Test our chosen best, from SkUtils.h
 BENCH(sk_memcpy32, 10)
 BENCH(sk_memcpy32, 100)
 BENCH(sk_memcpy32, 1000)
 BENCH(sk_memcpy32, 10000)
 BENCH(sk_memcpy32, 100000)
 
 #undef BENCH