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

bench/ImageDecodeBench.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 "SkBitmap.h"
 #include "SkData.h"
@@ skipping 10 matching lines @@
 class ImageDecodeBench : public Benchmark {
 public:
     ImageDecodeBench(void* p, const char* filename)
     : fName("image_decode_")
     , fFilename(filename)
     , fStream()
     , fValid(false) {
         fName.append(SkOSPath::Basename(filename));
     }
 
-    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
+    bool isSuitableFor(Backend backend) SK_OVERRIDE {
         return backend == kNonRendering_Backend;
     }
 
 protected:
-    virtual const char* onGetName() SK_OVERRIDE {
+    const char* onGetName() SK_OVERRIDE {
         return fName.c_str();
     }
 
-    virtual void onPreDraw() SK_OVERRIDE {
+    void onPreDraw() SK_OVERRIDE {
         SkFILEStream fileStream(fFilename.c_str());
         fValid = fileStream.isValid() && fileStream.getLength() > 0;
         if (fValid) {
             const size_t size = fileStream.getLength();
             void* data = sk_malloc_throw(size);
             if (fileStream.read(data, size) < size) {
                 fValid = false;
             } else {
                 SkAutoTUnref<SkData> skdata(SkData::NewFromMalloc(data, size));
                 fStream.setData(skdata.get());
             }
         }
     }
 
-    virtual void onDraw(const int loops, SkCanvas*) SK_OVERRIDE {
+    void onDraw(const int loops, SkCanvas*) SK_OVERRIDE {
 #ifdef SK_DEBUG
         if (!fValid) {
             SkDebugf("stream was invalid: %s\n", fName.c_str());
             return;
         }
 #endif
         // Decode a bunch of times
         SkBitmap bm;
         for (int i = 0; i < loops; ++i) {
             SkDEBUGCODE(bool success =) SkImageDecoder::DecodeStream(&fStream, &bm);
@@ skipping 18 matching lines @@
     const SkString  fFilename;
     SkMemoryStream  fStream;
     bool            fValid;
 
     typedef Benchmark INHERITED;
 };
 
 // These are files which call decodePalette
 //DEF_BENCH( return SkNEW_ARGS(ImageDecodeBench, ("/usr/local/google/home/scroggo/Downloads/images/hal_163x90.png")); )
 //DEF_BENCH( return SkNEW_ARGS(ImageDecodeBench, ("/usr/local/google/home/scroggo/Downloads/images/box_19_top-left.png")); )