Simplify benchmark internal API.

bench/BlurImageFilterBench.cpp

Index: bench/BlurImageFilterBench.cpp
diff --git a/bench/BlurImageFilterBench.cpp b/bench/BlurImageFilterBench.cpp
index 1c4d4bf361a858efaa25ca87bc70d6bd3eae751e..c39573d8e84ae14df0e1618e9188c61180d90520 100644
--- a/bench/BlurImageFilterBench.cpp
+++ b/bench/BlurImageFilterBench.cpp
@@ -41,11 +41,11 @@ protected:
         }
     }
 
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
         SkPaint paint;
         paint.setImageFilter(new SkBlurImageFilter(fSigmaX, fSigmaY))->unref();
 
-        for (int i = 0; i < this->getLoops(); i++) {
+        for (int i = 0; i < loops; i++) {
             canvas->drawBitmap(fCheckerboard, 0, 0, &paint);
         }
     }