Test SkCodec to kIndex8 in nanobench.

bench/CodecBench.h

Index: bench/CodecBench.h
diff --git a/bench/CodecBench.h b/bench/CodecBench.h
index 2bc4ba9a6f886f3c7b975057a1ffd1203dc1ad5c..7d56f1cce29bbf1b427113238d996a5b61d7c100 100644
--- a/bench/CodecBench.h
+++ b/bench/CodecBench.h
@@ -9,7 +9,6 @@
 #define CodecBench_DEFINED
 
 #include "Benchmark.h"
-#include "SkBitmap.h"
 #include "SkData.h"
 #include "SkImageInfo.h"
 #include "SkRefCnt.h"
@@ -33,7 +32,8 @@ 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