Simplify benchmark internal API.

bench/FSRectBench.cpp

Index: bench/FSRectBench.cpp
diff --git a/bench/FSRectBench.cpp b/bench/FSRectBench.cpp
index 80f10bd7e491f06894ab2c27202e7ca7b3faa8df..ea65f30eeec5e82b7dc12c77d799f5eab22d8af5 100644
--- a/bench/FSRectBench.cpp
+++ b/bench/FSRectBench.cpp
@@ -39,9 +39,9 @@ protected:
         }
     }
 
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
         SkPaint paint;
-        for (int i = 0; i < this->getLoops(); ++i) {
+        for (int i = 0; i < loops; ++i) {
             paint.setColor(fColors[i % N]);
             canvas->drawRect(fRects[i % N], paint);
         }