Remove const from `const int loops`.

bench/BlurRectsBench.cpp

Index: bench/BlurRectsBench.cpp
diff --git a/bench/BlurRectsBench.cpp b/bench/BlurRectsBench.cpp
index 83847713eecd0b16049afcf6aa89790a22aeb737..6bfde8ebf8fa077e6298acce2b6e47d1733910d0 100644
--- a/bench/BlurRectsBench.cpp
+++ b/bench/BlurRectsBench.cpp
@@ -29,7 +29,7 @@ public:
         fName = name;
     }
 
-    void onDraw(const int loops, SkCanvas* canvas) override {
+    void onDraw(int loops, SkCanvas* canvas) override {
         SkPaint paint;
         paint.setMaskFilter(SkBlurMaskFilter::Create(kNormal_SkBlurStyle, fRadius))->unref();