Remove Sk prefix from some bench classes.

bench/BlurBench.cpp

Index: bench/BlurBench.cpp
diff --git a/bench/BlurBench.cpp b/bench/BlurBench.cpp
index ae31804deb4d0f6fa92b87c449e493c223c10dbb..cafc6f3a2a387e7fd0fb09b3f12d72799ebb3e54 100644
--- a/bench/BlurBench.cpp
+++ b/bench/BlurBench.cpp
@@ -5,14 +5,14 @@
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
-#include "SkBenchmark.h"
+#include "Benchmark.h"
 #include "SkBlurMask.h"
+#include "SkBlurMaskFilter.h"
 #include "SkCanvas.h"
 #include "SkPaint.h"
 #include "SkRandom.h"
 #include "SkShader.h"
 #include "SkString.h"
-#include "SkBlurMaskFilter.h"
 
 #define SMALL   SkIntToScalar(2)
 #define REAL    1.5f
@@ -26,7 +26,7 @@ static const char* gStyleName[] = {
     "inner"
 };
 
-class BlurBench : public SkBenchmark {
+class BlurBench : public Benchmark {
     SkScalar    fRadius;
     SkBlurStyle fStyle;
     uint32_t    fFlags;
@@ -75,7 +75,7 @@ protected:
     }
 
 private:
-    typedef SkBenchmark INHERITED;
+    typedef Benchmark INHERITED;
 };
 
 DEF_BENCH(return new BlurBench(SMALL, kNormal_SkBlurStyle);)