Test SkCodec to kIndex8 in nanobench.

bench/CodecBench.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef CodecBench_DEFINED
 #define CodecBench_DEFINED
 
 #include "Benchmark.h"
-#include "SkBitmap.h"
 #include "SkData.h"
 #include "SkImageInfo.h"
 #include "SkRefCnt.h"
 #include "SkString.h"
 
 /**
  *  Time SkCodec.
  */
 class CodecBench : public Benchmark {
 public:
     // Calls encoded->ref()
     CodecBench(SkString basename, SkData* encoded, SkColorType colorType);
 
 protected:
     const char* onGetName() override;
     bool isSuitableFor(Backend backend) override;
     void onDraw(const int n, SkCanvas* canvas) override;
     void onPreDraw() override;
 
 private:
     SkString                fName;
     const SkColorType       fColorType;
     SkAutoTUnref<SkData>    fData;
-    SkBitmap                fBitmap;
+    SkImageInfo             fInfo;      // Set in onPreDraw.
+    SkAutoMalloc            fStorage;

[msarett, 2015/04/02 14:40:57]

It wasn't completely clear to me that this was the destination pixel array,
based on the name.

Of course, since we never use the decoded pixels for anything, it probably
doesn't matter.

[scroggo, 2015/04/02 20:15:24]

No, I think that is good feedback. Done.

     typedef Benchmark INHERITED;
 };
 #endif // CodecBench_DEFINED