Remove const from `const int loops`.

bench/BlurRectBench.cpp

Index: bench/BlurRectBench.cpp
diff --git a/bench/BlurRectBench.cpp b/bench/BlurRectBench.cpp
index 890a79e673fbec5c4b2a70fa7238b4fd5b2dd1f7..b8a72118153e33cb70a45fc111a5fce7bccceb2d 100644
--- a/bench/BlurRectBench.cpp
+++ b/bench/BlurRectBench.cpp
@@ -51,7 +51,7 @@ protected:
         fName = name;
     }
 
-    virtual void onDraw(const int loops, SkCanvas*) {
+    virtual void onDraw(int loops, SkCanvas*) {
         SkPaint paint;
         this->setupPaint(&paint);